Homonyms are words that sound the same and are spelled the same, but have different meanings.
The word rock has several different meanings:
a. The mother liked to rock her baby before putting him to bed.
In this sentence, the word “rock” is a verb, telling us something that the mother does.
b. I found a round, smooth rock in the river.
In this sentence, the word “rock” is a noun, naming a thing we found in the river.
c. I enjoy listening to rock music.
In this sentence, the word “rock” is an adjective, describing a type of music.
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.