diff --git a/app/assets/javascripts/new_design/champs/linked_drop_down_list.js b/app/assets/javascripts/new_design/champs/linked_drop_down_list.js
index 70a3628ca..d82bf438f 100644
--- a/app/assets/javascripts/new_design/champs/linked_drop_down_list.js
+++ b/app/assets/javascripts/new_design/champs/linked_drop_down_list.js
@@ -1,30 +1,30 @@
 document.addEventListener('turbolinks:load', function() {
-  var masters, i, master, slave, slaveOptions;
+  var primaries, i, primary, secondary, secondaryOptions;
 
-  masters = document.querySelectorAll('select[data-slave-options]');
-  for (i = 0; i < masters.length; i++) {
-    master = masters[i];
-    slave = document.querySelector('select[data-slave-id="' + master.dataset.masterId + '"]');
-    slaveOptions = JSON.parse(master.dataset.slaveOptions);
+  primaries = document.querySelectorAll('select[data-secondary-options]');
+  for (i = 0; i < primaries.length; i++) {
+    primary = primaries[i];
+    secondary = document.querySelector('select[data-secondary-id="' + primary.dataset.primaryId + '"]');
+    secondaryOptions = JSON.parse(primary.dataset.secondaryOptions);
 
-    master.addEventListener('change', function(e) {
+    primary.addEventListener('change', function(e) {
       var option, options, element;
 
-      while ((option = slave.firstChild)) {
-        slave.removeChild(option);
+      while ((option = secondary.firstChild)) {
+        secondary.removeChild(option);
       }
 
-      options = slaveOptions[e.target.value];
+      options = secondaryOptions[e.target.value];
 
       for (i = 0; i < options.length; i++) {
         option = options[i];
         element = document.createElement("option");
         element.textContent = option;
         element.value = option;
-        slave.appendChild(element);
+        secondary.appendChild(element);
       }
 
-      slave.selectedIndex = 0;
+      secondary.selectedIndex = 0;
     });
   }
 });
diff --git a/app/controllers/new_user/dossiers_controller.rb b/app/controllers/new_user/dossiers_controller.rb
index c90d82075..361eb3765 100644
--- a/app/controllers/new_user/dossiers_controller.rb
+++ b/app/controllers/new_user/dossiers_controller.rb
@@ -145,7 +145,7 @@ module NewUser
     def champs_params
       params.permit(dossier: {
         champs_attributes: [
-          :id, :value, :master_value, :slave_value, :piece_justificative_file, value: [],
+          :id, :value, :primary_value, :secondary_value, :piece_justificative_file, value: [],
           etablissement_attributes: Champs::SiretChamp::ETABLISSEMENT_ATTRIBUTES
         ]
       })
diff --git a/app/models/champs/linked_drop_down_list_champ.rb b/app/models/champs/linked_drop_down_list_champ.rb
index aff0259f0..ef02e78f4 100644
--- a/app/models/champs/linked_drop_down_list_champ.rb
+++ b/app/models/champs/linked_drop_down_list_champ.rb
@@ -1,36 +1,36 @@
 class Champs::LinkedDropDownListChamp < Champ
-  attr_reader :master_value, :slave_value
-  delegate :master_options, :slave_options, to: :type_de_champ
+  attr_reader :primary_value, :secondary_value
+  delegate :primary_options, :secondary_options, to: :type_de_champ
 
   after_initialize :unpack_value
 
   def unpack_value
     if value.present?
-      master, slave = JSON.parse(value)
+      primary, secondary = JSON.parse(value)
     else
-      master = slave = ''
+      primary = secondary = ''
     end
-    @master_value ||= master
-    @slave_value ||= slave
+    @primary_value ||= primary
+    @secondary_value ||= secondary
   end
 
-  def master_value=(value)
-    @master_value = value
+  def primary_value=(value)
+    @primary_value = value
     pack_value
   end
 
-  def slave_value=(value)
-    @slave_value = value
+  def secondary_value=(value)
+    @secondary_value = value
     pack_value
   end
 
   def main_value_name
-    :master_value
+    :primary_value
   end
 
   private
 
   def pack_value
-    self.value = JSON.generate([ master_value, slave_value ])
+    self.value = JSON.generate([ primary_value, secondary_value ])
   end
 end
diff --git a/app/models/types_de_champ/linked_drop_down_list_type_de_champ.rb b/app/models/types_de_champ/linked_drop_down_list_type_de_champ.rb
index 1d8b369d2..6e602a97f 100644
--- a/app/models/types_de_champ/linked_drop_down_list_type_de_champ.rb
+++ b/app/models/types_de_champ/linked_drop_down_list_type_de_champ.rb
@@ -1,31 +1,31 @@
 class TypesDeChamp::LinkedDropDownListTypeDeChamp < TypeDeChamp
-  MASTER_PATTERN = /^--(.*)--$/
+  PRIMARY_PATTERN = /^--(.*)--$/
 
-  def master_options
-    master_options = unpack_options.map(&:first)
-    if master_options.present?
-      master_options.unshift('')
+  def primary_options
+    primary_options = unpack_options.map(&:first)
+    if primary_options.present?
+      primary_options.unshift('')
     end
-    master_options
+    primary_options
   end
 
-  def slave_options
-    slave_options = unpack_options.to_h
-    if slave_options.present?
-      slave_options[''] = []
+  def secondary_options
+    secondary_options = unpack_options.to_h
+    if secondary_options.present?
+      secondary_options[''] = []
     end
-    slave_options
+    secondary_options
   end
 
   private
 
   def unpack_options
     _, *options = drop_down_list.options
-    chunked = options.slice_before(MASTER_PATTERN)
+    chunked = options.slice_before(PRIMARY_PATTERN)
     chunked.map do |chunk|
-      master, *slave = chunk
-      slave.unshift('')
-      [MASTER_PATTERN.match(master)[1], slave]
+      primary, *secondary = chunk
+      secondary.unshift('')
+      [PRIMARY_PATTERN.match(primary)[1], secondary]
     end
   end
 end
diff --git a/app/views/shared/dossiers/editable_champs/_linked_drop_down_list.html.haml b/app/views/shared/dossiers/editable_champs/_linked_drop_down_list.html.haml
index 330465aeb..03afe6832 100644
--- a/app/views/shared/dossiers/editable_champs/_linked_drop_down_list.html.haml
+++ b/app/views/shared/dossiers/editable_champs/_linked_drop_down_list.html.haml
@@ -1,10 +1,10 @@
 - if champ.drop_down_list && champ.drop_down_list.options.any?
   - champ_id = champ.object_id
-  = form.select :master_value,
-    champ.master_options,
+  = form.select :primary_value,
+    champ.primary_options,
     { required: champ.mandatory? },
-    { data: { "slave-options" => champ.slave_options, "master-id" => champ_id } }
-  = form.select :slave_value,
-    champ.slave_options[champ.master_value],
+    { data: { "secondary-options" => champ.secondary_options, "primary-id" => champ_id } }
+  = form.select :secondary_value,
+    champ.secondary_options[champ.primary_value],
     { required: champ.mandatory? },
-    { data: { "slave-id" => champ_id } }
+    { data: { "secondary-id" => champ_id } }
diff --git a/spec/features/new_user/linked_dropdown_spec.rb b/spec/features/new_user/linked_dropdown_spec.rb
index 9a32d2423..01758f0bc 100644
--- a/spec/features/new_user/linked_dropdown_spec.rb
+++ b/spec/features/new_user/linked_dropdown_spec.rb
@@ -6,13 +6,13 @@ feature 'linked dropdown lists' do
 
   let(:list_items) do
     <<~END_OF_LIST
-      --Master 1--
-      Slave 1.1
-      Slave 1.2
-      --Master 2--
-      Slave 2.1
-      Slave 2.2
-      Slave 2.3
+      --Primary 1--
+      Secondary 1.1
+      Secondary 1.2
+      --Primary 2--
+      Secondary 2.1
+      Secondary 2.2
+      Secondary 2.3
     END_OF_LIST
   end
   let(:drop_down_list) { create(:drop_down_list, value: list_items) }
@@ -26,22 +26,22 @@ feature 'linked dropdown lists' do
 
   let(:user_dossier) { user.dossiers.first }
 
-  scenario 'change master value, slave options are updated', js: true do
+  scenario 'change primary value, secondary options are updated', js: true do
     log_in(user.email, password, procedure)
 
     fill_individual
 
-    # Select a master value
-    select('Master 2', from: master_id_for('linked dropdown'))
+    # Select a primary value
+    select('Primary 2', from: primary_id_for('linked dropdown'))
 
-    # Slave menu reflects chosen master value
-    expect(page).to have_select(slave_id_for('linked dropdown'), options: ['', 'Slave 2.1', 'Slave 2.2', 'Slave 2.3'])
+    # Secondary menu reflects chosen primary value
+    expect(page).to have_select(secondary_id_for('linked dropdown'), options: ['', 'Secondary 2.1', 'Secondary 2.2', 'Secondary 2.3'])
 
-    # Select another master value
-    select('Master 1', from: master_id_for('linked dropdown'))
+    # Select another primary value
+    select('Primary 1', from: primary_id_for('linked dropdown'))
 
-    # Slave menu gets updated
-    expect(page).to have_select(slave_id_for('linked dropdown'), options: ['', 'Slave 1.1', 'Slave 1.2'])
+    # Secondary menu gets updated
+    expect(page).to have_select(secondary_id_for('linked dropdown'), options: ['', 'Secondary 1.1', 'Secondary 1.2'])
   end
 
   private
@@ -64,13 +64,13 @@ feature 'linked dropdown lists' do
     expect(page).to have_current_path(modifier_dossier_path(user_dossier))
   end
 
-  def master_id_for(libelle)
+  def primary_id_for(libelle)
     find(:xpath, ".//label[contains(text()[normalize-space()], '#{libelle}')]")[:for]
   end
 
-  def slave_id_for(libelle)
-    master_id = master_id_for(libelle)
-    link = find("\##{master_id}")['data-master-id']
-    find("[data-slave-id=\"#{link}\"]")['id']
+  def secondary_id_for(libelle)
+    primary_id = primary_id_for(libelle)
+    link = find("\##{primary_id}")['data-primary-id']
+    find("[data-secondary-id=\"#{link}\"]")['id']
   end
 end
diff --git a/spec/models/champs/linked_drop_down_list_champ_spec.rb b/spec/models/champs/linked_drop_down_list_champ_spec.rb
index 0b9586203..95327e5cb 100644
--- a/spec/models/champs/linked_drop_down_list_champ_spec.rb
+++ b/spec/models/champs/linked_drop_down_list_champ_spec.rb
@@ -4,12 +4,12 @@ describe Champs::LinkedDropDownListChamp do
   describe '#unpack_value' do
     let(:champ) { described_class.new(value: '["tata", "tutu"]') }
 
-    it { expect(champ.master_value).to eq('tata') }
-    it { expect(champ.slave_value).to eq('tutu') }
+    it { expect(champ.primary_value).to eq('tata') }
+    it { expect(champ.secondary_value).to eq('tutu') }
   end
 
   describe '#pack_value' do
-    let(:champ) { described_class.new(master_value: 'tata', slave_value: 'tutu') }
+    let(:champ) { described_class.new(primary_value: 'tata', secondary_value: 'tutu') }
 
     before { champ.save }
 
diff --git a/spec/models/types_de_champ/linked_drop_down_list_type_de_champ_spec.rb b/spec/models/types_de_champ/linked_drop_down_list_type_de_champ_spec.rb
index 7bbe5a3e5..ab0fcf203 100644
--- a/spec/models/types_de_champ/linked_drop_down_list_type_de_champ_spec.rb
+++ b/spec/models/types_de_champ/linked_drop_down_list_type_de_champ_spec.rb
@@ -7,34 +7,34 @@ describe TypesDeChamp::LinkedDropDownListTypeDeChamp do
 
     context 'with no options' do
       let(:menu_options) { '' }
-      it { expect(type_de_champ.slave_options).to eq({}) }
-      it { expect(type_de_champ.master_options).to eq([]) }
+      it { expect(type_de_champ.secondary_options).to eq({}) }
+      it { expect(type_de_champ.primary_options).to eq([]) }
     end
 
-    context 'with two master options' do
+    context 'with two primary options' do
       let(:menu_options) do
         <<~END_OPTIONS
-          --Master 1--
-          slave 1.1
-          slave 1.2
-          --Master 2--
-          slave 2.1
-          slave 2.2
-          slave 2.3
+          --Primary 1--
+          secondary 1.1
+          secondary 1.2
+          --Primary 2--
+          secondary 2.1
+          secondary 2.2
+          secondary 2.3
         END_OPTIONS
       end
 
       it do
-        expect(type_de_champ.slave_options).to eq(
+        expect(type_de_champ.secondary_options).to eq(
           {
             '' => [],
-            'Master 1' => [ '', 'slave 1.1', 'slave 1.2'],
-            'Master 2' => [ '', 'slave 2.1', 'slave 2.2', 'slave 2.3']
+            'Primary 1' => [ '', 'secondary 1.1', 'secondary 1.2'],
+            'Primary 2' => [ '', 'secondary 2.1', 'secondary 2.2', 'secondary 2.3']
           }
         )
       end
 
-      it { expect(type_de_champ.master_options).to eq([ '', 'Master 1', 'Master 2' ]) }
+      it { expect(type_de_champ.primary_options).to eq([ '', 'Primary 1', 'Primary 2' ]) }
     end
   end
 end