sentinel

Meaning

Noun

1. A sentry, watch, or guard.
2. (obsolete) A private soldier.
3. A unique value recognised by a computer program for processing in a special way, or marking the end of a set of data.
4. A sentinel crab.
5. (attributive) A sign of a health risk (e.g. a disease, an adverse effect).

Verb

1. (transitive) To watch over as a guard.
2. (transitive) To post a guard for.

Synonyms

sentry

guard

💂

watchman

watch

⌚

patrol

lookout

scout

guardsman

💂‍♂️

mark

guardian

picket

keeper

watchdog

watcher

caretaker

spotter

lookout man

protector

vedette

flag

blip

groundsman

intension

label

🏷️

labeling

look out

manciple

marker

marking

night watch

object

objective

palace guard

paladin

patrolman

purport

purpose

purview

retread

sake

🍶

scope

security guard

shielder

someone

supporter

tab

tag

tenor

transducer

translator

Translations

centinela

Wache

sentinelle

sentinella

Wächter

💂

guardia

schildwacht

💂

garde

💂

nöbetçi

💂

factionnaire

guarda

💂

sentinela

wacht

guàrdia

σκοπός

Pronounced as (IPA)

/ˈsɛntɪnəl/

Etymology

Cognate with Italian: sentire

In summary

1570s, from Middle French sentinelle, from Old Italian sentinella (perhaps via a notion of "perceive, watch", compare Italian sentire (“to feel, hear, smell”)), from Latin sentiō (“feel, perceive by the senses”). See sense, sentient.