be on the tip of one's tongue, to perfectly memorize something

immersed in one's memory

to be remembered, to recur (to), to come to mind, be borne in mind, be committed to memory, be memorized, be learnt by heart

tip of the tongue, memorized, oral, verbal

to memorize, to get by heart

on the point of tongue, about to say

to differ from one's word or command

be fickle, not to stick to one's words

on the tip of the tongue, by heart

to be eloquent and smooth-spoken

be learnt by heart, constantly recited or uttered

back out of one's word

something which seems nice to hear