side with (someone)

to agree with or support someone.

When workers have sued companies for violating their privacy, judges have usually sided with the employer.

Usage notes: the opposite meaning is expressed by side against someone - to disagree with or not support someone:

As much as I hate to side against a friend, I feel she is wrong.

Related vocabulary: take sides

• cross fingers
• cross has to bear
• cross mind
• Cross my heart.
• Cross my heart and hope to die.
• cross path
• cross someone has to bear
• cross someone's path
• cross swords
• cross swords with
• cross swords with someone
• cross that bridge when come to it
• cross that bridge when you come to it
• cross the line
• cross the Rubicon
• cross to bear
• cross your fingers
• cross your mind
• cross your path
• crowd-puller
• crown it all
• cry-baby
• cry eyes out
• cry for the moon
• cry heart out