He bumped his head and got quite a headache.
my brother was running and bumped me down to the floor
stumbled
"I was so tired that I fell asleep at the computer and bumped my forehead on the keyboard."
I am not writing a sentence using that word.
I can give you a sentence using the word galaxy.
The volcano suddenly erupted when two tectonic plates bumped into each other.
This is a sentence using the word aviator.
a sentence using the word endotracheal
As a verb: I always jumble the sequence of the presidents on tests, especially the Roosevelts. As a noun: I bumped the Scrabble board and made a jumble of the words already played.
This is a sentence using the word monomer. :P
I am saying a sentence using the word collagen.
this is a sentence using the word armchair.