The word “awhile” is an adverb meaning “for a while.” The word “for” is built in.
Good Examples: Sit awhile. Sit for a while. I can wait awhile. I can wait for a while.
Bad Examples: Sit for awhile (= Sit for for a while). Sit a while. This may take awhile (= This may take for a while).
You see, the word “while” is a noun that means “an unspecified period of time.” The article “a” before it is your big clue as to its nounhood. You can substitute the noun “moment” for the noun “while” and your sentence will still make sense, but it won’t make sense if you substitute the noun “moment” for the adverb “awhile.”
Noun Example: Sit for a while. Sit for a moment.
Adverb Example: Sit awhile. Sit moment.
In fact, you can get away without ever using “awhile” if you always use “for a while.”
Profound Metaphor of the Day
Advice for the pencil and the person:
1.) Everything you do will always leave a mark.
2.) You can always correct the mistakes you make.
3.) What is important is what is inside of you.
4.) In life, you will undergo painful sharpenings, which will only make you better.
5.) To be the best, you must allow yourself to be held and guided by the Hand that holds you