diff --git a/public/language/cs/global.json b/public/language/cs/global.json
index 273eaffe68..20163c921d 100644
--- a/public/language/cs/global.json
+++ b/public/language/cs/global.json
@@ -29,13 +29,13 @@
     "header.popular": "Populární",
     "header.users": "Uživatelé",
     "header.groups": "Skupiny",
-    "header.chats": "Chats",
+    "header.chats": "Chaty",
     "header.notifications": "Oznámení",
     "header.search": "Hledat",
     "header.profile": "Můj profil",
     "header.navigation": "Navigace",
     "notifications.loading": "Načítání upozornění",
-    "chats.loading": "Načítání grafů",
+    "chats.loading": "Načítání chatů",
     "motd.welcome": "Vítejte na NodeBB, diskusní platforma buducnosti.",
     "previouspage": "Předchozí stránka",
     "nextpage": "Další stránka",
diff --git a/public/language/cs/login.json b/public/language/cs/login.json
index c6699ab6ae..746c3364a9 100644
--- a/public/language/cs/login.json
+++ b/public/language/cs/login.json
@@ -1,6 +1,6 @@
 {
-    "username-email": "Username / Email",
-    "username": "Username",
+    "username-email": "Uživatel / Email",
+    "username": "Uživatel",
     "email": "Email",
     "remember_me": "Zapamatovat si mě?",
     "forgot_password": "Zapomněli jste heslo?",
diff --git a/public/language/cs/tags.json b/public/language/cs/tags.json
index 8fc07c7da2..59b7f40c43 100644
--- a/public/language/cs/tags.json
+++ b/public/language/cs/tags.json
@@ -1,7 +1,7 @@
 {
     "no_tag_topics": "Není zde žádné téma s tímto tagem.",
     "tags": "Tagy",
-    "enter_tags_here": "Enter tags here, between %1 and %2 characters each.",
+    "enter_tags_here": "Zde vložte tagy, každý o délce %1 až %2 znaků.",
     "enter_tags_here_short": "Vložte tagy ...",
     "no_tags": "Zatím tu není žádný tag."
 }
\ No newline at end of file
diff --git a/public/language/cs/topic.json b/public/language/cs/topic.json
index 53d9fec054..6d30b3ea98 100644
--- a/public/language/cs/topic.json
+++ b/public/language/cs/topic.json
@@ -35,8 +35,8 @@
     "ignoring_topic.message": "You will no longer see this topic in the unread topics list.  You will be notified when you are mentioned or your post is up voted.",
     "login_to_subscribe": "Please register or log in in order to subscribe to this topic.",
     "markAsUnreadForAll.success": "Topic marked as unread for all.",
-    "mark_unread": "Mark unread",
-    "mark_unread.success": "Topic marked as unread.",
+    "mark_unread": "Označ za nepřečtené",
+    "mark_unread.success": "Téma označeno jako nepřečtené",
     "watch": "Sledovat",
     "unwatch": "Unwatch",
     "watch.title": "Be notified of new replies in this topic",
@@ -48,18 +48,18 @@
     "watching.description": "Notify me of new replies.<br/>Show topic in unread.",
     "not-watching.description": "Do not notify me of new replies.<br/>Show topic in unread if category is not ignored.",
     "ignoring.description": "Do not notify me of new replies.<br/>Do not show topic in unread.",
-    "thread_tools.title": "Topic Tools",
+    "thread_tools.title": "Správa tématu",
     "thread_tools.markAsUnreadForAll": "Označit jako nepřečtené",
-    "thread_tools.pin": "Pin Topic",
-    "thread_tools.unpin": "Unpin Topic",
-    "thread_tools.lock": "Lock Topic",
+    "thread_tools.pin": "Připnout téma",
+    "thread_tools.unpin": "Odepnout téma",
+    "thread_tools.lock": "Zamknout téma",
     "thread_tools.unlock": "Odemknout téma",
     "thread_tools.move": "Přesunout téma",
     "thread_tools.move_all": "Přesunout vše",
-    "thread_tools.fork": "Fork Topic",
+    "thread_tools.fork": "Větvit téma",
     "thread_tools.delete": "Odstranit téma",
     "thread_tools.delete-posts": "Odstranit přispěvky",
-    "thread_tools.delete_confirm": "Are you sure you want to delete this topic?",
+    "thread_tools.delete_confirm": "Opravdu chcete smazat toto téma.",
     "thread_tools.restore": "Obnovit téma",
     "thread_tools.restore_confirm": "Are you sure you want to restore this topic?",
     "thread_tools.purge": "Purge Topic",
@@ -88,7 +88,7 @@
     "delete_posts_instruction": "Click the posts you want to delete/purge",
     "composer.title_placeholder": "Zadejte název tématu...",
     "composer.handle_placeholder": "Jméno",
-    "composer.discard": "Discard",
+    "composer.discard": "Zrušit",
     "composer.submit": "Odeslat",
     "composer.replying_to": "Replying to %1",
     "composer.new_topic": "Nové téma",
diff --git a/public/language/cs/unread.json b/public/language/cs/unread.json
index 8943eefdeb..0c6ee0319f 100644
--- a/public/language/cs/unread.json
+++ b/public/language/cs/unread.json
@@ -2,7 +2,7 @@
     "title": "Nepřečtené",
     "no_unread_topics": "Nejsou zde žádné nepřečtené témata.",
     "load_more": "Načíst další",
-    "mark_as_read": "Označit jako přeštené",
+    "mark_as_read": "Označit jako přečtené",
     "selected": "Vybrané",
     "all": "Vše",
     "all_categories": "Všechny kategorie",
diff --git a/public/language/fa_IR/error.json b/public/language/fa_IR/error.json
index a5afb7d656..7a68ce7a2f 100644
--- a/public/language/fa_IR/error.json
+++ b/public/language/fa_IR/error.json
@@ -92,7 +92,7 @@
     "invalid-chat-message": "پیام نامعتبر",
     "chat-message-too-long": "پیام طولانی تر از حد مجاز است",
     "cant-edit-chat-message": "شما اجازه ی ویرایش این پیام را ندارید",
-    "cant-remove-last-user": "You can't remove the last user",
+    "cant-remove-last-user": "شما نمی توانید آخرین کاربر را حذف کنید",
     "cant-delete-chat-message": "شما اجازه حذف این پیام را ندارید.",
     "already-voting-for-this-post": "شما قبلا به این پست رای داده اید.",
     "reputation-system-disabled": "سیستم اعتبار غیر فعال شده است",
@@ -106,7 +106,7 @@
     "wrong-login-type-email": "لطفا از ایمیل خود برای ورود استفاده کنید",
     "wrong-login-type-username": "لطفا از نام کاربری خود برای ورود استفاده کنید",
     "invite-maximum-met": "You have invited the maximum amount of people (%1 out of %2).",
-    "no-session-found": "No login session found!",
+    "no-session-found": "هیچ سشن ورودی یافت نشد!",
     "not-in-room": "هیچ کاربری در این گفتگو نیست",
     "no-users-in-room": "هیچ کاربری در این گفتگو نیست",
     "cant-kick-self": "شما نمی توانید خودتان را از گروه کیک کنید"
diff --git a/public/language/fa_IR/notifications.json b/public/language/fa_IR/notifications.json
index e11d75682b..cfcf1c270d 100644
--- a/public/language/fa_IR/notifications.json
+++ b/public/language/fa_IR/notifications.json
@@ -13,7 +13,7 @@
     "new_message_from": "پیام تازه از <strong>%1</strong>",
     "upvoted_your_post_in": "<strong>%1</strong> امتیاز مثبت به پست شما در <strong>%2</strong> داده",
     "upvoted_your_post_in_dual": "<strong>%1</strong> و <strong>%2</strong> رای مثبت به پست شما در\n <strong>%3</strong>.",
-    "upvoted_your_post_in_multiple": "<strong>%1</strong> and %2 others have upvoted your post in <strong>%3</strong>.",
+    "upvoted_your_post_in_multiple": "<strong>%1</strong>و %2 دیگران به پست شما رای مثبت دادن در  <strong>%3</strong>.",
     "moved_your_post": "<strong>%1</strong> پست شما را به <strong>%2</strong> انتقال داده است",
     "moved_your_topic": "<strong>%2</strong> <strong>%1</strong> را منتقل کرده است",
     "favourited_your_post_in": "<strong>%1</strong> has bookmarked your post in <strong>%2</strong>.",