Watchful

How to spell watchful

8 letters · 2 syllables

How to pronounce watchful

Say the part in capitals loudest.

What does watchful mean?

1. adjectiveAlert and observant, paying careful attention to what is happening in order to notice trouble or change.

Watchful in a sentence

• The lifeguard kept a watchful eye on the children in the pool.

• Under the watchful gaze of the auditor, every receipt was double checked.

Where does watchful come from?

Language of origin: Germanic

This word is built from the native English verb 'watch', which descends from the Old English 'wæccan', meaning 'to keep awake' or 'to be vigilant', a relative of 'wake' and 'wakeful'. Its earliest sense was less about looking and more about staying awake on guard duty, which is why a night patrol was once called a 'watch'. The adjective adds the suffix '-ful', from the Old English 'full', here carrying the sense 'full of' or 'marked by', so 'watchful' literally means 'full of watching'. The combined form appears in English by the late medieval and Tudor period, settling into the modern sense of alert and observant. A useful spelling reminder is that '-ful' as a suffix always takes a single 'l', even though the standalone word 'full' has two.

How the word is built

• watch (from Old English wæccan: to keep awake, observe)
• -ful (full of, characterised by)