Meaning
To support someone; or to move backwards.
Example Sentence
"My colleagues backed me up during the meeting."
Synonyms
support
endorse
reverse
retreat
Usage Note
This phrasal verb is separable. When using a noun object, it can go between the verb and particle or after the particle. When using a pronoun object, it must go between the verb and particle (e.g., "turn it off" not "turn off it").