Dictionary entry

σημαίνω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

σημαίνω

(< σῆμα, a sign), [in LXX for רוּעַ hi., תָּקַע, etc.;]

to give a sign, signify, indicate: c. acc. rei, Ac 25:27, Re 1:1 (cf. MM, xxii); c. acc. et inf., Ac 11:28; seq. quæst. indir., Jo 12:3318:3221:19.†