سِرَاجٌ
1.
a word of well-known meaning; (S, O, K;) i. q.
مِصْبَاحٌ [i. e. A lamp, or its lighted wick, (the latter of which meanings is assigned to both of these words by Jel in xxiv. 35,)] (L, Msb, TA) that gives light by night: (L, TA:) or, properly, a lighted wick; its employment to signify the place thereof [i. e. a lamp, generally a vessel of glass having in its bottom a small glass tube into which the lower part of the wick is inserted,] being a well-known tropical application: (MF, TA:) plural سُرُجٌ. (O, Msb, TA.) [See also مَسْرَجَةٌ.]
2.
[Hence,] the sun is called a سِرَاج [in the Qur'an, 71:15, and also xxv. 62, and lxxviii. 13], (S, O,) and السِّرَاجُ, (K,) and سِرَاجُ النَّهَارِ (tropical:) [The lamp of day]. (A, TA.) So too is the Prophet. (Qur'an, 33:45.) 'Omar, also, is called in a tradition سِرَاجُ أَهْلِ الجَنَّةِ (assumed tropical:) [The lamp of the people of Paradise]. (TA.) And one says, الهُدِى سِرَاجٌ
المُوءْمِنِينَ (tropical:) [The Qur'an is the lamp of the believers], (A,) or سِرَاجُ المُوءْمِنِ [the lamp of the believer]. (TA.)
3.
Also, metaphorically, (tropical:) The eye; because of its being often likened to a سِرَاج. (Har p. 554.)