Quick Definition
I look at attentively, consider
Strong's Definition
to look again (i.e. attentively) at (literally or figuratively)
Derivation: from G303 (ἀνά) and G2334 (θεωρέω);
KJV Usage: behold, consider
Thayer's Greek Lexicon
ἀναθεωρέω, (ῶ; properly, 'to survey a series of things from the lowest to the highest, German daranhinsehen,längsdurchsehen (to look along up or through) (Winers De verb. comp. Part iii., p. 3); hence, to look at attentively, to observe accurately, consider well: τί, Act_17:23; Heb_13:7. (Diodorus Siculus 12, 15 ἐξ ἐπιπολῆς μέν θεωρούμενος ... ἀναθεωρούμενος δέ καί μετ' ἀκριβείας ἐξεταζόμενος; 14, 109; 2, 5; Lucian, vit. auct. 2; necyom. 15; Plutarch, Aem. P. 1 (uncertain); Cat. min. 14; (adverb Colot. 21, 2).)
Mounce Concise Greek Dictionary
ἀναθεωρέω anatheōreō 2x
to view, behold attentively, contemplate, Act_17:23 ; Heb_13:7
Abbott-Smith Greek Lexicon
† ἀνα -θεωρέω , -ῶ ,
to observe carefully, consider well : Act_17:23 , Heb_13:7 ( Diod ., al. ).†
STEPBible — Tyndale Abridged Greek Lexicon
ἀνα-θεωρέω, -ῶ
to observe carefully, consider well: Act.17:23, Heb.13:7 (Diod., al.).†
(AS)