Valentine's day

(n)

ˈvæ.lən.ˌtɑɪn deɪ

Definition: 14 february, a day when it is traditional to send a card, often anonymously, to a person one is romantically involved with or attracted to.

Meaning: Ngày lễ tình nhân

Not Common

How to use "Valentine's day" vocabulary in sentence (example)

Americans buy 58 million+ lbs (26 million+ kg) of chocolate on Valentine's Day, that's 5% of yearly sales.

YouTube was founded on February 14th (Valentine's Day!), 2005 by three ex-PayPal employees.