pond

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A still body of water smaller than a lake.
• intransitive verb To form ponds or large puddles.
• intransitive verb To cause to form ponds or large puddles.
• intransitive verb To form ponds or large puddles on (a piece of land).

from The Century Dictionary.

• noun A body of water, natural or artificial, of less extent than a lake: as, a mill-pond.
• To dam or pen up; make into a pond by damming: collect in a pond by stopping the current of a river.
• To form pools or ponds; collect in the manner of water in a pond.
• noun A Middle English form of pound.
• To ponder.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To make into a pond; to collect, as water, in a pond by damming.
• transitive verb obsolete To ponder.
• noun A body of water, naturally or artificially confined, and usually of less extent than a lake.
• noun (Zoöl.) the American coot. See Coot (a).
• noun (Bot.) the water lily. See under Water, and Illust. under Nymphæa.
• noun (Zoöl.) any gastropod living in fresh-water ponds or lakes. The most common kinds are air-breathing snails (Pulmonifera) belonging to Limnæa, Physa, Planorbis, and allied genera. The operculated species are pectinibranchs, belonging to Melantho, Valvata, and various other genera.
• noun (Bot.) an American shrub (Tetranthera geniculata) of the Laurel family, with small oval leaves, and axillary clusters of little yellow flowers. The whole plant is spicy. It grows in ponds and swamps from Virginia to Florida.
• noun (Zoöl.) any freshwater tortoise of the family Emydidæ. Numerous species are found in North America.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An inland body of standing water, either natural or man-made, that is smaller than a lake.
• noun colloquial The Atlantic Ocean. Especially in across the pond.
• verb To block the flow of water so that it can escape only through evaporation or seepage; to dam.
• verb obsolete To ponder.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a small lake