What does admonish mean?
The definition of admonish
Ad*mon”ish, v. t.
[imp. & p. p. Admonished; p. pr. & vb. n.Admonishing.]
Etym: [OE. amonesten, OF. amonester, F. admonester, fr. a supposed LL. admonesstrare, fr. L. admonere to remind, warn; ad + monere to warn. See Monition.]

1 To warn or notify of a fault; to reprove gently or kindly, but seriously; to exhort. “Admonish him as a brother.” 2 Thess. iii. 15.
2 To counsel against wrong practices; to cation or advise; to warn against danger or an offense; — followed by of, against, or a subordinate clause. Admonishing one another in psalms and hymns. Col. iii. 16. I warned thee, I admonished thee, foretold The danger, and the lurking enemy. Milton.
3 To instruct or direct; to inform; to notify. Moses was admonished of God, when he was about to make the tabernacle. Heb. viii. 5.