наизуст

• by heart/rote
• уча НАИЗУСТ learn by heart/rote, memorize, commit to memory
• свиря НАИЗУСТ play without music
• говоря НАИЗУСТ talk without knowing the facts; talk incompetently
• знам/казвам НАИЗУСТ know/say by heart/rote; recite from memory
• който знае НАИЗУСТ (роля и пр.) word-perfect