Английский словарь американских идиом - weigh one's words

{v. phr.} To choose your words carefully; be careful to use the right words. * /When a teacher explains about religion, he must weigh his words because his pupils may be of several different faiths./ * /When old Mr. Jones talked to the students about becoming teachers, he spoke slowly, weighing his words./ * /In a debate, a political candidate has little time to weigh his words, and may say something foolish./