precaution

noun

pre·​cau·​tion pri-ˈkȯ-shən 

1

: care taken in advance : foresight

warned of the need for precaution

2

: a measure taken beforehand to prevent harm or secure good : safeguard

take the necessary precautions

precautionary

pri-ˈkȯ-shə-ˌner-ē 

adjective

Synonyms of precaution

• safeguard
• preventive
• protection
• caution

Examples of precaution in a Sentence

Be sure to follow the usual safety precautions when cooking outdoors.

When driving, she always wears her seatbelt as a precaution.

Every home owner should take precautions against fire.

She took the precaution of packing extra medicine for the trip.

Recent Examples on the Web

In May 2025, a huge mass of rock and ice from a glacier thundered down the mountainside in the nearby Loetschental valley, sending plumes of dust skyward and coating with mud nearly all of Blatten, which had been evacuated earlier as a precaution. — ABC News, 18 Aug. 2026

Heavy rains in burn scar areas can pose serious threats of flash flooding, and the sheriff's office asked residents to take precautions around the scarred areas. — Christa Swanson, CBS News, 17 Aug. 2026

Research shows those precautions help houses resist the onslaught of tiny, burning embers carried by the wind, the main reason wildfires spread so rapidly in extreme conditions. — Lauren Sommer, NPR, 17 Aug. 2026

Louisiana health officials are urging Gulf Coast beachgoers to take precautions amid a surge in infections caused by a flesh-eating bacteria found in coastal waters. — Maureen O'Hare, CNN Money, 15 Aug. 2026

Word History

Etymology

French précaution, from Late Latin praecaution-, praecautio, from Latin praecavēre to guard against, from prae- + cavēre to be on one's guard — more at hear

First Known Use

1599, in the meaning defined at sense 1

Rhymes for precaution

• laplacian
• poblacion
• caution
• washin

Kids Definition

precaution

noun

pre·​cau·​tion pri-ˈkȯ-shən 

1

: care taken in advance : foresight

2

: a measure taken beforehand to prevent harm or to bring about a good result

take precautions against fire

precautionary

-shə-ˌner-ē 

adjective