Yes, hum is in the scrabble dictionary
...and is worth 9 points by itself.
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Hum Definition noun
The act of humming .
from The American Heritage Dictionary of the English Language, 4th Edition
The sound produced by humming .
from The American Heritage Dictionary of the English Language, 4th Edition
verb-transitive
Baseball To throw or pitch (a ball) very fast .
from The American Heritage Dictionary of the English Language, 4th Edition
To sing (a tune) without opening the lips or forming words .
from The American Heritage Dictionary of the English Language, 4th Edition
verb-intransitive
To be in a state of busy activity .
from The American Heritage Dictionary of the English Language, 4th Edition
To emit a continuous low droning sound like that of the speech sound (m) when prolonged .
from The American Heritage Dictionary of the English Language, 4th Edition
To emit the continuous droning sound of a bee on the wing; buzz .
from The American Heritage Dictionary of the English Language, 4th Edition
To give forth a low continuous drone blended of many sounds: The avenue hummed with traffic .
from The American Heritage Dictionary of the English Language, 4th Edition
To produce a tune without opening the lips or forming words .
from The American Heritage Dictionary of the English Language, 4th Edition
interjection
Used to indicate hesitation, surprise, or displeasure .
from The American Heritage Dictionary of the English Language, 4th Edition
verb
To affect or express by humming .
from Free Scrabble Dictionary
To sing with the lips closed and without articulation .
from Free Scrabble Dictionary
To run smoothly .
from Free Scrabble Dictionary
To be busily active .
from Free Scrabble Dictionary
To give forth a low continuous blend of sound .
from Free Scrabble Dictionary
Here are some other words you could make with the letters HUM , you can also use this lookup tool to help you find words with our scrabble word finder .
Top Words by points
Points
hum
8
2 letter words with HUM Points hm 7 mu 4 uh 5 um 4
3 letter words with HUM Points hum 8
Found 5 words in 0.09938 seconds