Definition of "dusk" []

• The darker stage of twilight, especially in the evening. (noun)
• Tending to darkness; dusky. (adjective)
• To become or make dark or dusky. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "You can also try your hand at paddling through Kayak Pittsburgh, which offers free kayaking 4 p.m. to dusk Monday-Friday in Lake Elizabeth on Pittsburgh's North Side, near the National Aviary (10 a. m.-dusk Saturday and Sunday, $5 per boat)."
• "COME, for the dusk is our own; let us fare forth together,"
• "Even when dusk is descending, he is never ready to leave."