bypass

1 of 2

noun

by·​pass ˈbī-ˌpas 

1

: a passage to one side

especially : a deflected route usually around a town

2

a

: a channel carrying a fluid around a part and back to the main stream

b(1)

: shunt sense 1b

(2)

: shunt sense 1c

also : a surgical procedure for the establishment of a shunt

have a coronary bypass

bypass

2 of 2

verb

bypassed; bypassing; bypasses

transitive verb

1

a

: to avoid by means of a bypass

bypass a congested area

b

: to cause to follow a bypass

2

a

: to neglect or ignore usually intentionally

b

: circumvent

attempting to bypass the law

Synonyms

Verb

• circumvent
• avoid

Examples of bypass in a Sentence

Noun

The bridge is being rebuilt so we'll have to take the bypass.

Verb

To bypass the city, take the highway that circles it.

Is there a way to bypass the bridge construction?

He bypassed the manager and talked directly to the owner.

She managed to bypass the usual paperwork.

Recent Examples on the Web

Noun

The hospital was on lockdown after the shooting and was also on bypass, meaning patients that normally might have been taken to the Evanston Hospital emergency room were taken to other hospitals. —Richard Requena, Chicago Tribune, 10 June 2025

The researchers explained that attackers gain initial access through brute-force login attempts, along with authentication bypass techniques that exploit known vulnerabilities that owners have yet to patch. —Davey Winder, Forbes.com, 30 May 2025

Verb

If Michael Misa is somehow bypassed after the first two picks, the Blackhawks would be happy to take him. —Scott Powers, New York Times, 19 June 2025

Senator [Tim] Kaine's resolution is a common-sense step to make sure no president can bypass the Constitution and launch military action without accountability. —Anna Commander hannah Parry, MSNBC Newsweek, 18 June 2025

Word History

First Known Use

Noun

1848, in the meaning defined at sense 1

Verb

1736, in the meaning defined at sense 1a

Phrases Containing bypass

• coronary artery bypass
• coronary artery bypass graft
• coronary artery bypass grafting
• coronary bypass
• coronary bypass graft
• coronary bypass grafting
• gastric bypass

Rhymes for bypass

• alas
• amass
• bromegrass
• chagas
• crabgrass
• crevasse
• eelgrass
• eyeglass
• groundmass
• harass
• impasse
• jackass

Kids Definition

bypass

1 of 2 noun

by·​pass ˈbī-ˌpas 

: a passage to one side or around a blocked or very crowded area

bypass

2 of 2 verb

: to make a detour around

bypass a city

Medical Definition

bypass

noun

by·​pass ˈbī-ˌpas 

: a surgically established shunt

cardiopulmonary bypass of blood from the right atrium to the aorta

also : a surgical procedure for the establishment of a shunt

Note: When a bypass is performed on more than one coronary artery or branch, the number of times (double, triple, etc.) is often specified.

I was immediately scheduled for a triple bypass, but they decided to try an angioplasty.

—Terry Todd, Sports Illustrated

see coronary artery bypass, gastric bypass, jejunoileal bypass

bypass transitive verb