Lullaby

/ˈlʌləˌbaɪ/

Meaning & Definition

noun
a quiet, gentle song sung to help someone, usually a child, fall asleep.
She sang a sweet lullaby to her baby to help him drift off to sleep.
a soothing or calming influence that helps to relax someone.
The sound of the waves acted as a lullaby, easing her worries as she lay on the beach.

Etymology

Middle English 'lullay', derived from 'lull' + 'bye', with 'bye' suggesting comfort or good wishes.

Common Phrases and Expressions

lull someone to sleep
To help someone fall asleep through soothing actions or sounds.
sing a lullaby
To perform a calming song typically intended for children.

Related Words

nap
A short sleep, especially during the day.
cradle
To hold gently and protectively.
serenade
A musical performance given in someone's honor, often performed outdoors.

Slang Meanings

To put someone to sleep.
That movie was so boring it lulled me to sleep.
A calming or boring situation.
The lecture was a total lullaby, no one could stay awake.