Толковый словарь английского языка Oxford English Reference - instruct

v.tr. 1 (often foll. by in) teach (a person) a subject etc. (instructed her in French). 2 (usu. foll. by to + infin.) direct; command (instructed him to fill in the hole). 3 (often foll. by of, or that etc. + clause) inform (a person) of a fact etc. 4 Brit. a (of a client or solicitor) give information to (a solicitor or counsel). b authorize (a solicitor or counsel) to act for one. Etymology: ME f. L instruere instruct- build, teach (as IN-(2), struere pile up)