Wikipedia:

Highland | Highlands

Summary:

may refer to: Armenian Highland | Southern Highlands, usually referred as the Southern Tablelands in New South Wales | Central Highlands (Victoria) | Central Highlands (Tasmania) | Northern Highlands, usually referred as the Northern Tablelands in ...  (32 of 660 words, 80 senses)

Link:

http://en.wikipedia.org/wiki/Highland  [cite]

Random House:

highland

Summary:

an elevated region; plateau. | "highlands", a mountainous region or elevated part of a country. | of, pertaining to, or characteristic of highlands. | ...  (21 of 74 words, 6 senses, pronunciation)

Link:

http://dictionary.infoplease.com/highland  [cite]

Encarta:

highland | highlander [noun]

Summary:

hilly ground, higher than its surroundings | an area or region that is largely hilly or mountainous. | relating to or coming from highlands, ...  (22 of 51 words, 3 senses, pronunciation)

Link:

http://encarta.msn.com/dictionary 1861617905/definition.html  [cite]

Merriam-Webster:

highland

Summary:

elevated or mountainous land  (4 of 15 words, pronunciation)

Link:

http://www.merriam-webster.com/dictionary/highland  [cite]

Wiktionary:

highland | highlands [plural]

Summary:

An area of land that is at elevation; mountainous land. | Relating to highlands.  (13 of 15 words, 2 senses)

Link:

http://en.wiktionary.org/wiki/highland  [cite]

Columbia:

elevation

Summary:

vertical distance from a datum plane, usually mean sea level to a point above the earth. Often used synonymously with altitude, elevation is the ...  (24 of 76 words)

Link:

http://www.infoplease.com/ce6/sci/A0817049.html  [cite]