STEP Greek Lexicon: στῦλος

στύλος (T, στῦλος, as in cl.), -ου, ὁ

[in LXX chiefly for עַמּוּד, also for קֶרֶשׁ, etc. ;]

a pillar, regarded especially as a support: σ. πυρός, Rev.10:1; σ. ἐν τ. ναῷ, figuratively, Rev.3:12, Metaphorical, Gal.2:9; τ. ἀληθείας, 1Ti.3:15.†

(AS)