. "sea level"^^ . . . . . . . "104846118"@en-us . "0"^^ . . . "103998598"@en-us . . "level of the ocean's surface (especially that halfway between mean high and low tide); used as a standard in reckoning land elevation or sea depth"@en-us . . "sea level"@en-us . "05132340-n"^^ . "105132340"^^ . "0"^^ .