astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole

time unit, unit of time - a unit for measuring time periods

country, land, state - the territory occupied by a nation; "he returned to the land of his birth"; "he visited several European countries"

Belau, Palau Islands, Pelew, Palau - a chain of more than 200 islands about 400 miles long in the western central Pacific Ocean

country, land, state - the territory occupied by a nation; "he returned to the land of his birth"; "he visited several European countries"

Micronesia - the islands in the northwestern part of Oceania

Kolonia - capital of Micronesia

Ladrone Islands, Mariana Islands, Marianas - a chain of coral and volcanic islands in Micronesia (including Guam and the Northern Marianas) halfway between New Guinea and Japan; discovered by Magellan in 1521

Caroline Islands - a long archipelago of more than 500 islands in Micronesia east of the Philippines

Marshall Islands - a group of coral islands in eastern Micronesia

Ellice Islands, Tuvalu - a group of coral islands in Micronesia southwest of Hawaii

Kiribati, Republic of Kiribati - an island republic in the west central Pacific just south of the equator

Gilbert and Ellice Islands - a former British possession in Micronesia

Nauru Island, Pleasant Island, Nauru - a small island in the central Pacific Ocean 2,800 miles southwest of Hawaii; in Micronesia west of the Gilbert Islands