lend (someone) a hand

to help someone do something, especially something that involves physical effort.

Could you lend me a hand with these books?

He's always willing to lend a hand in the kitchen.

• sing someone's praises
• sing something's praises
• sing the blues
• sing the same tune
• sing up a storm
• sinking feeling
• sinking ship
• sink like a stone
• sink or swim
• sink teeth into
• sink teeth into something
• sink to such depths
• sink without trace
• sink your teeth into
• sink your teeth into something
• sin tax
• siphon off
• siphon off something
• sit around on backside
• sit around on your backside
• sit back
• sit back and
• sit back and do something
• sit by
• sit by and