night, knight

Night or night means the part of the day when it is dark--
He liked to keep all of the lights on at night.
He doesn't like to drive at night.

Knight or knight ( rhymes with night ) means a noble vassal of a king or lord--
The queen made the music star a knight.
He dreamed of being a medieval knight in armor.

Now that you know that, you can say--
"The knight never wore his armor at night."

Note--to "be knighted" means to be made a knight by the king or queen--
He wanted to be knighted by the queen so that people would call him "sir".

Note # 2-- "benighted" ( rhymes with be knighted ) means in the dark, mentally--
He considered everyone benighted unless they were familiar with the latest technology.

Note # 3--"nightly" means every night--
They like to watch the nightly news show.
Not to be confused with "knightly", meaning having the manners of a knight, or belonging to a knight--
His knightly courage made him famous throughout the kingdom.