ὑποσημαίνω · hyposēmainō — LSJ
throw out hints of, intimate, indicate
throw out hints of, intimate, τι Th. 1.82; χρεῶν ἀποκοπάς Pl. R. 566a; χελιδὼν ὑ. τι Ael. NA 1.52, cf. Plu. Per. 11: abs., indicate, καθάπερ τοὔνομα αὐτὸ ὑ. Arist. EN 1122a23, cf. 1112a16.
2 make signal
in military sense, σάλπιγγι ὑ. make signal by sound of trumpet, τῇ σάλπιγγι σιωπὴ ὑπεσημάνθη Th. 6.32; also ὑπεσήμηνεν ἡ σάλπιγξ ἀνακλητικόν Plu. Comp.Pel.Marc. 3: abs., ἡ σάλπιγξ ὑ. D.C. 49.9, cf. Polyaen. 1.35.1.
3 to be just visible
intr., to be just visible, of the whites of the eyes, Archig. ap. Orib. 46.26.4.
II sign
sign, ἐπιστολῇ PSI 5.471.3 (v/vi A. D.); πιττάκιον PKlein.Form. 1033 (vi A. D.).
III observe
Med., observe, τὠυτὸ σχῆμα ἔχοντα Hp. Morb. 3.16.