Can any teacher here recommand me a online thesaurus (or a paper edition) which provides grammatical explanation of appropriate use of synonym. I am dying for choosing to use correct word in sentences.
Thank you so much for your attention
Synonyms will generally have the same grammatical form, so the differences are to do with nuances of meaning- thesauruses usually group synonyms and near-synonyms. The choice of word is dictated by collocation, style, etc, so you need to compare words in use. Try searching a concordancer (language database) to see if a word occurs in a similar context before using it.
American English: Corpus of Contemporary American English (COCA)
British English: British National Corpus (BYU-BNC)