ingress

1 of 2

noun (1)

in·​gress ˈin-ˌgres 

1

: the act of entering : entrance

the seal prevents ingress of moisture

2

: the power or liberty of entrance or access

an area with restricted ingress

ingression

in-ˈgre-shən 

noun

ingression

2 of 2

noun (2)

in·​gres·​sion ə̇nˈgreshən 

plural -s

1

: the action of entering : entrance

2

: the process whereby potentialities or eternal objects enter into or become complex actual occasions or events

the ingression of an object into an event is the way the character of the event shapes itself in virtue of the being of the object

—A. N. Whitehead

3

: inward migration in gastrulation of large yolk-laden macromeres formed by holoblastic but markedly unequal cleavage

Synonyms of ingress

Noun (1)

• access
• entry
• door
• entrance
• accession

Examples of ingress in a Sentence

Noun (1)

Ingress to and egress from the freeway were made difficult by the construction.

with limited ingress and egress to the freeway, the stadium is the frequent scene of bottlenecks

Recent Examples on the Web

Noun

The company says one potential application is a temperature logger used during the sterilization of retort food, where equipment needs to tolerate high temperatures while limiting moisture ingress. — Neetika Walter, Interesting Engineering, 26 Aug. 2026

As an additional protection, the frame is sealed with a splash-resistant rating, meaning the internal electronics are safe from dust ingress and spray during damp morning commutes. — New Atlas, 20 Aug. 2026

The Hamburg Street Bridge will be temporarily closed between Leadenhall and Paca Streets for event ingress. — Adam Thompson, CBS News, 10 Aug. 2026

In natural gas pipelines, oxygen can indicate air ingress or leakage. — Gregory Shahnovsky, Forbes.com, 7 Aug. 2026

Word History

Etymology

Noun (1)

Middle English, from Latin ingressus, from ingredi

Noun (2)

Middle English, from Latin ingression-, ingressio, from ingressus (past participle) + -ion-, -io -ion

First Known Use

Noun (1)

circa 1544, in the meaning defined at sense 1

Kids Definition

ingress

noun

in·​gress ˈin-ˌgres 

1

: the act of entering

2

: the power or liberty of entering

Legal Definition

ingress

noun

in·​gress ˈin-ˌgres 

1

: the act of entering

2

: the power or liberty of access compare egress