I. Practical Vocabulary Building Strategies:
II. When you don’t know an exact word, stop trying to remember it. The more you keep straining your brain to remember it, the more the word is going to evade you.
There are lots of things you can do to communicate without saying the exact word:
general words, examples, synonyms, antonyms, relative clauses to give a description (It’s a person who … / thing that … / place where … ), describe the purpose or function (It’s used to + infinitive / for + -ing), approximations (It’s a kind of … / It’s a sort of …)