close friend, bosom buddy / crony, chum

mountain pass, ridge / (figuratively) crisis, climax

a surname / A place name. / a surname

mountain pass; ridge

mountain pass / apex, the top

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

private; mine

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness

a personal or private matter / selfishness / privacy, secrecy / (women's speech, obsolete) a brother-in-law