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
See all Synonyms & Antonyms 
Example Sentences
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 Congress also passed a pair of landmark bills in the past month that could reshape the economy and reduce carbon emissions. 
Josh Boak And Hannah Fingerhut, BostonGlobe.com, 15 Sep. 2022 Part of that can be tied to behavioral differences between the wealthiest and poorest, especially smoking, obesity and exercise, according to a landmark 2016 study in the Journal of American Medicine, or JAMA. jsonline.com, 15 Sep. 2022 Congress also passed a pair of landmark bills in the past month that could reshape the economy and reduce carbon emissions. Time, 15 Sep. 2022 The theater received state and city landmark status in 1983. Rachel Desantis, Peoplemag, 14 Sep. 2022 In August, Biden signed the CHIPS Act, a landmark investment in domestic semiconductor manufacturing. Prarthana Prakash, Fortune, 13 Sep. 2022 Renowned architect Jack Franzen built the home for late businessman Mickey Herbert and his wife, Jackie, who were inspired by the Vanderbilt’s landmark Shelburne Farms estate on Lake Champlain in upstate New York. Emma Reynolds, Robb Report, 13 Sep. 2022 President Joe Biden this summer signed a landmark bill into law allowing Medicare to negotiate the price of prescription drugs. Amanda Seitz, Chicago Tribune, 12 Sep. 2022 Slick coffee-table books about landmark sneakers and their advertising campaigns have become best sellers. New York Times, 10 Sep. 2022 See More
Josh Boak And Hannah Fingerhut, BostonGlobe.com, 15 Sep. 2022 Part of that can be tied to behavioral differences between the wealthiest and poorest, especially smoking, obesity and exercise, according to a landmark 2016 study in the Journal of American Medicine, or JAMA. jsonline.com, 15 Sep. 2022 Congress also passed a pair of landmark bills in the past month that could reshape the economy and reduce carbon emissions. Time, 15 Sep. 2022 The theater received state and city landmark status in 1983. Rachel Desantis, Peoplemag, 14 Sep. 2022 In August, Biden signed the CHIPS Act, a landmark investment in domestic semiconductor manufacturing. Prarthana Prakash, Fortune, 13 Sep. 2022 Renowned architect Jack Franzen built the home for late businessman Mickey Herbert and his wife, Jackie, who were inspired by the Vanderbilt’s landmark Shelburne Farms estate on Lake Champlain in upstate New York. Emma Reynolds, Robb Report, 13 Sep. 2022 President Joe Biden this summer signed a landmark bill into law allowing Medicare to negotiate the price of prescription drugs. Amanda Seitz, Chicago Tribune, 12 Sep. 2022 Slick coffee-table books about landmark sneakers and their advertising campaigns have become best sellers. New York Times, 10 Sep. 2022 See More Word History
First Known Use
before the 12th century, in the meaning defined at sense 1
Kids Definition
landmark
noun
land·mark ˈland-ˌmärk
1
: something (as a building, a large tree, or a statue) that is easy to see and can help a person find the way to a place near it
2
: a building of historical importance
3
: a very important event or achievement
The case was a landmark in legal history.
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
landmark
noun
as in milestone
a point in a chain of events at which an important change (as in one's fortunes) occurs typically, people feel that turning 21 is a landmark in one's life Synonyms & Similar Words
Relevance
- milestone
- climax
- watershed
- corner
- highlight
- milepost
- climacteric
- turning point
- crisis
- transformation
- emergency
- turnaround
- conversion
- break
- clincher
- capper
- crusher
- topper
- metamorphosis
- turnabout
- juncture
- transfiguration
- extremity
- zero hour
- flash point
- conjuncture
- boiling point
- breaking point
- exigency
- clutch
- crunch
- crossroad(s)
- crunch time
- head
- Dunkirk