eleven o'clock

time / an event, case, occasion, moment; a specific period in time / a time of something / a season / a tense / (literary) the time during which a narrative takes place

ten o'clock

to begin

teach; to instruct; give a lesson

instruction; teaching; school; lesson, class

eleven; 11

(idiomatic) from A to Z

(chiefly women's speech) first person singular pronoun: I, me

private; mine