abort

1 of 2

verb

ə-ˈbȯrt 

aborted; aborting; aborts

intransitive verb

1

: to bring forth stillborn, nonviable, or premature offspring

2

: to become checked in development so as to degenerate or remain rudimentary

3

: to terminate a procedure prematurely

the pilot decided to abort due to mechanical difficulties

transitive verb

1

a

: to induce the abortion of or give birth to prematurely

b

: to terminate the pregnancy of before term

2

a

: to terminate prematurely : cancel

abort a project

abort a spaceflight

b

: to stop in the early stages

abort a disease

aborter noun

abort

2 of 2

noun

: the premature termination of a flight (as of an aircraft or spacecraft), a mission, or an action or procedure relating to a flight

a launch abort

Synonyms of abort

Verb

• cancel
• abandon
• revoke
• scrap

Examples of abort in a Sentence

Verb

They decided to abort the pregnancy.

abort the launch of a rocket

I suggest that you abort the project.

The mission had to be aborted.

When problems occurred during the launch, it was necessary to abort.

Recent Examples on the Web

Verb

Still, no need to abort the mission — stay focused and allow room for a potential detour. — Valerie Mesa, PEOPLE, 25 June 2026

Antonelli was in fourth, having aborted his final run after Verstappen crashed and brought out a yellow flag at turn 9. — Jonathan M. Gitlin, ArsTechnica, 29 June 2026

Noun

Soon, the closeout crew will close the crew module and the exterior hatches on the launch abort system, which is a lengthy, careful process. — Charlie Gile, NBC news, 1 Apr. 2026

But just after ignition, due to an automatic abort from the ground systems, a hard shutdown was commanded. — ArsTechnica, 18 May 2026

Word History

Etymology

Verb

in part borrowed from Latin abortus, past participle of aborīrī "to pass away, be lost, (of a fetus) miscarry, be aborted, (of a woman) miscarry," from ab- ab- + orīrī "to rise, come into existence, be born"; in part borrowed from Late Latin abortīre and abortīrī "(of a woman) to miscarry," derivatives of Latin aborīrī — more at orient entry 2

Noun

noun derivative of abort entry 1

First Known Use

Verb

1540, in the meaning defined at intransitive sense 1

Noun

1944, in the meaning defined above

Rhymes for abort

• airport
• alport
• athwart
• carport
• comport
• consort
• deport
• disport
• distort
• escort
• exhort
• extort

Kids Definition

abort

verb

ə-ˈbȯrt

1

: to bring forth premature or stillborn offspring

2

: to become checked in development

3

: to put an end to before completion

abort a project

Medical Definition

abort

intransitive verb

ə-ˈbȯ(ə)rt 

: to bring forth premature or stillborn offspring

the patient aborted spontaneously

compare miscarry

transitive verb

1

a

: to induce the abortion of or give birth to prematurely

b

: to terminate the pregnancy of before term

2

: to stop in the early stages

abort a disease

aborter noun

Legal Definition

abort

transitive verb

ə-ˈbȯrt 

: to induce the expulsion of (a human fetus)