a book or electronic resource that gives a list of the words of a language in alphabetical order and explains what they mean, or gives a word for them in a foreign language
فرهنگ لغت, واژهنامه, لغتنامه
2
a book that explains the words that are used in a particular subject
واژهنامه, فرهنگ لغت, لغتنامه
a dictionary of mathematics
I decided to consult a medical dictionary.
3
a list of words in electronic form, for example stored in a computer’s spellchecker