labor of love

to labor a point

to labor under a delusion

labored breathing

labour under delusion

Labour emerged as the largest party in the elections

labour over something

to lace a drink

laced with brandy

Lack of sleep is not good for your health.

lack in manpower

to lack experience

to lack polish

to lack sparkle

He lacked the courage to do it

lackey catspaw

He lacks the courage to do it

I'm a laconic person sometimes.

lactose-free milk

lad

laddish

ladida

Ladies and gentlemen!

ladies’ man

ladieswear