Thesaurus.com
Dictionary.com
Definitions

on end

ADJECTIVE
upright
Synonyms
STRONGEST
erect perpendicular vertical
STRONG
plumb standing straight
WEAK
cocked end on upward
Antonyms
STRONG
horizontal level sitting
WEAK
prone
ADJECTIVE
vertical
Synonyms
STRONGEST
perpendicular steep
STRONG
bolt upright erect plumb
WEAK
cocked sheer straight-up up-and-down upward
Antonyms
STRONG
horizontal level
WEAK
prone
ADVERB
together
Synonyms
WEAK
consecutively continually continuously in succession night and day one after the other running successively unintermittedly without a break without interruption

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

None had lived aboard for months on end as an expedition crew member afterward.

From Los Angeles Times • Mar. 30, 2026

Widespread damage could keep energy prices high for months on end, regardless of whether Hormuz is reopened to traffic.

From MarketWatch • Mar. 21, 2026

My adult physical life has been a mixed bag of hyper-athletic hot yoga, long country runs and hunching over my computer for days on end.

From The Wall Street Journal • Mar. 19, 2026

When she wasn't posting her own content, she would scroll Instagram and watch videos on YouTube for hours on end.

From BBC • Mar. 13, 2026

A certain compulsion forced him to continue to search for the secrets of the chessboard, and this preoccupation commanded his attention for hours on end.

From "Endgame" by Frank Brady