sea level

noun

The nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured.

“The summit of Everest is 5.5 miles above sea level.”

Similar
mean sea levelMSL
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounsea level (countable and uncountable, plural sea levels)

plural sea levels

  1. countableuncountableThe nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured.

    The summit of Everest is 5.5 miles above sea level.

    1 more example

    An altimeter is used for measuring height above sea level.

    Synonyms: mean sea level, MSL

Synonyms & antonyms

nounThe nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured.

Similar
mean sea levelMSL

Translations

Afrikaans seevlak, seespieël
  • seevlaknominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • seespieëlnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Catalan nivell del mar
  • nivell del marnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Chinese Mandarin 海平面, 海面
  • 海平面 (hǎipíngmiàn)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • 海面 (hǎimiàn)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Dutch zeeniveau, zeespiegel
  • zeeniveaunominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • zeespiegelnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Esperanto marnivelo
  • marnivelonominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Finnish merenpinnan taso, merenpinta
  • merenpinnan tasonominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • merenpintanominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
French niveau de la mer
  • niveau de la mernominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
German Meeresspiegel
  • Meeresspiegelnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Greek στάθμη θάλασσας
  • στάθμη θάλασσας (státhmi thálassas)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Hawaiian ʻilikai
  • ʻilikainominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Hindi समुद्र तल
  • समुद्र तल (samudra tal)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Hungarian tengerszint
  • tengerszintnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Icelandic sjávarmál
  • sjávarmálnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Irish leibhéal na farraige, leibhéal na mara
  • leibhéal na farraigenominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • leibhéal na maranominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Italian livello del mare
  • livello del marenominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Japanese 海面, 海水面
  • 海面 (kaimen)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • 海水面 (kai suimen)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Korean 해면, 해수면
  • 해면 (haemyeon)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • 해수면 (haesumyeon)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Latvian jūras līmenis
  • jūras līmenisnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Malay paras laut
  • paras lautnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Māori pae moana
  • pae moananominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Norwegian Bokmål havnivå, sjønivå
  • havnivånominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
  • sjønivånominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Polish poziom morza
  • poziom morzanominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Portuguese nível do mar
  • nível do marnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Romanian nivelul mării
  • nivelul măriinominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Russian у́ровень мо́ря
  • у́ровень мо́ря (úrovenʹ mórja)nominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Scottish Gaelic àirde-mara
  • àirde-maranominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Spanish nivel del mar
  • nivel del marnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Swahili usawa wa bahari
  • usawa wa baharinominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Swedish havsnivå
  • havsnivånominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Tagalog pantay-dagat
  • pantay-dagatnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Turkish deniz seviyesi
  • deniz seviyesinominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Vietnamese mực nước biển
  • mực nước biểnnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Welsh lefel y môr
  • lefel y môrnominal height of the surface of the oceans above which heights of geographical features and aircraft flight levels are measured
Cite this entry
APA

sea level. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/sea%20level

MLA

“sea level.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sea%20level. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “sea level,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/sea%20level.

Source: sea level on Wiktionary, CC BY-SA 4.0.