PhpStorm show yellow lines below Turkish words.
How can I ignore all spelling errors in comments.
Settings (Preferences on Mac) | Inspections | Spelling | Typo
You can configure this inspection to ignore comments.
But ideally I would recommend adding dictionary for that language so IDE can check for spelling mistakes:
Settings | Spelling | Dictionaries tab
Dictionary file is a plain-text UTF-8 encoded file with 1 word per line.