Word Summary
phōstēr: a luminary, light
Original Word: φωστήρ
Transliteration: phōstēr
Phonetic Spelling: (foce-tare')
Part of Speech: Noun, Masculine
Short Definition: a luminary, light
Meaning: a luminary, light
Strong's Concordance

From phos; an illuminator, i.e. (concretely) a luminary, or (abstractly) brilliancy -- light.

see GREEK phos

Thayer's Greek Lexicon
STRONGS NT 5458: φωστήρ

φωστήρ, φωστηρος, (φῶς, φώσκω);

1. that which gives light, an illuminator (Vulg.luminar): of the stars (luminaries), Philippians 2:15 (Wis. 13:2; Sir. 43:7; Genesis 1:14, 16; Heliodorus 2, 24; (Anthol. Pal. 15, 17; of sun and moon, Test xii. Patr. test. Levi 14); ecclesiastical writings.)

2. light, brightness: Revelation 21:11 (Anthol. 11, 359) (others refer this to 1; cf. Trench, § xlvi.).