landmark

noun

land·​mark ˈland-ˌmärk 

1

: an object (such as a stone or tree) that marks the boundary of land

2

a

: a conspicuous object on land that marks a locality

b

: an anatomical structure used as a point of orientation in locating other structures

3

: an event or development that marks a turning point or a stage

4

: a structure (such as a building) of unusual historical and usually aesthetic interest

especially : one that is officially designated and set aside for preservation

Synonyms

• climacteric
• climax
• corner
• milepost
• milestone
• turning point
• watershed

Examples of landmark in a Sentence

The Golden Gate Bridge is a famous landmark in San Francisco.

The battlefield is a national historical landmark.

The moon landing is a landmark in space exploration.

The decision was a landmark in legal history.

Recent Examples on the Web

Seventy garments and 30 accessories by a host of renowned designers are presented in this landmark show — the first fashion exhibition ever staged at the Louvre — with creations often hidden among the museum’s nearly 100,000 square feet of rooms and galleries. —Lisa Klaassen and Serene Nourrisson, CNN, 26 Jan. 2025

Later on Thursday, the SEC made a landmark announcement, withdrawing an accounting rule that made institutional crypto adoption more difficult by forcing banks to treat bitcoin and other tokens as a liability on their balance sheet. —Mackenzie Sigalos, CNBC, 25 Jan. 2025

The city’s rich historical landmarks also double as centers for the modern art community that’s beginning to flourish here. —Monica Mendal, Vogue, 24 Jan. 2025

The historic landmark encompasses 259 guest rooms styled after European chalets, and the location itself is prime. —Rachel Fletcher, Architectural Digest, 23 Jan. 2025

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Kids Definition

landmark

noun

land·​mark ˈlan(d)-ˌmärk 

1

: an object that marks the boundary of land

2

a

: a usually large object on land that is easy to see and can help a person find the way to a place near it

b

: an important building or monument

historical landmarks

3

: an event that marks a turning point

Medical Definition

landmark

noun

land·​mark -ˌmärk 

1

: an anatomical structure used as a point of orientation in locating other structures (as in surgical procedures)

2

: a point on the body or skeleton from which anthropological measurements are taken

Legal Definition

landmark

noun

land·​mark

often attributive

1

: an object (as a stone or tree) that marks a boundary of land

2

: an event or development that marks a turning point or stage

a landmark decision

3

: a structure (as a building) of unusual historical or aesthetic interest

especially : one that is officially designated and set aside for preservation