Hummingbirds fly in an acrobatic style. Their tiny little wings beat fifty-three times a second. They can fly in one place. They can fly upside down and backward. Hummingbirds are fun to watch, but they do not stay in one place for long! Which is the best prediction about the meaning of acrobatic?

Acrobatic is a noun, so it probably means “dancer.”
Acrobatic is a verb, so it probably means “to spin and twirl.”
Acrobatic is an adjective, so it probably means “artistic.”
Acrobatic is an adverb, so it probably means “quickly.”