Twilight
Webster's Dictionary [1]
(1): ( n.) faint light; a dubious or uncertain medium through which anything is viewed.
(2): ( a.) Seen or done by twilight.
(3): ( a.) Imperfectly illuminated; shaded; obscure.
(4): ( n.) The light perceived before the rising, and after the setting, of the sun, or when the sun is less than 18¡ below the horizon, occasioned by the illumination of the earth's atmosphere by the direct rays of the sun and their reflection on the earth.
King James Dictionary [2]
TWI'LIGHT, n.
1. The faint light which is reflected upon the earth after sunset and before sunrise crepuscular light. In latitudes remote from the equator, the twilight is of much longer duration than at and near the equator. 2. Dubious or uncertain view as the twilight or probability.
TWI'LIGHT, a. Obscure imperfectly illuminated shaded.
O'er the twilight groves and dusky caves.
1. Seen or done by twilight.
International Standard Bible Encyclopedia [3]
twı̄´lı̄t ( נשׁף , nesheph ): The twilight of Palestine is of short duration, owing to the low latitude, there being scarcely more than an hour between sunset and complete darkness. It is a distinct boundary between daytime and the darkness. The people of Palestine still give the time of an event as so many hours before or after sunrise or sunset: "David smote them from the twilight even unto the evening of the next day" ( 1 Samuel 30:17 ), and "They rose up in the twilight to go" ( 2 Kings 7:5 ). The word is evidenly used in the sense of darkness in "the stars of twilight" ( Job 3:9 ) and "The adulterer waiteth for the twilight" ( Job 24:15 ). the King James Version has "twilight" in Ezekiel 12:6 ff, but the Revised Version (British and American) has "dark."