Sense

1. it is fated, necessary, one was sure, it must, must needs, one must or ought, one must, one must needs, it behoves, befits, it behoves
2. hast, need of, befit, hast need
3. is one to
4. fate, destiny

Examples

• ἐσθίειν μέλι πολὺ οὐ καλόν, τιμᾶ δὲ χρὴ λόγουσ ἐνδόξουσ. (Septuagint, Liber Proverbiorum 25:29)
• ἀλλ̓ οὐκ ἀφ̓ ἑνόσ, οἶμαι, χρὴ ἀνατρέπειν τὰ πάντα οὐδ̓ ἰσοτιμίαν τῶν μισθοφορούντων καθιστάναι. (Lucian, Apologia 27:3)
• πρὸ δὲ τῶν ὅλων μεμνῆσθαι χρὴ τοὺσ ἐπιτιμῶντασ, ὅτι οὐ σοφῷ ὄντι μοι ‐ εἰ δή τισ καὶ ἄλλοσ ἐστί που σοφόσ ‐ ἐπιτιμήσουσιν, ἀλλὰ τῷ ἐκ τοῦ πολλοῦ δήμου, λόγουσ μὲν ἀσκήσαντι καὶ τὰ μέτρια ἐπαινουμένῳ ἐπ̓ αὐτοῖσ, πρὸσ δὲ τὴν ἄκραν ἐκείνην τῶν κορυφαίων ἀρετὴν οὐ πάνυ γεγυμνασμένῳ· (Lucian, Apologia 34:1)
• χρὴ δὲ καὶ ταύταισ ἀρέσκειν τὸν ἄνθρωπον. (Lucian, Dearum judicium, (no name) 2:2)
• τὸ μὲν ἀληθὲσ οὐκ ἔχω εἰπεῖν, εἰκάζειν δὲ χρὴ νέον ὄντα καὶ τούτων ὀρέγεσθαι τυχεῖν καὶ βούλεσθαι ἂν πρῶτον αὐτὸν εἶναι κατὰ τὰσ μάχασ. (Lucian, Dearum judicium, (no name) 4:10)

Source: Henry George Liddell. Robert Scott. "A Greek-English Lexicon". revised and augmented throughout by. Sir Henry Stuart Jones.