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optometrist a person who is trained to examine people's eyes and to fit them with eyeglasses or contact lenses.
-or1 See -er1
OR1 an abbreviation for Oregon. [2 definitions]
or used to indicate alternatives. [3 definitions]
oral spoken, rather than written; carried out by speaking. [2 definitions]
orange a round fruit with a reddish yellow peel. It is sweet and juicy on the inside. [4 definitions]
orangeade a soft drink made with orange juice or orange flavoring.
orangutan a large ape that lives in the rain forests of a few south Asian islands. Orangutans have long, red-brown fur and long arms. They spend most of their time in trees. They are a kind of primate. Orangutans are endangered.
orbit the curved path in which a planet, satellite, or spacecraft moves in a circle around another body. [3 definitions]
orchard a piece of land planted with fruit or nut trees.
orchestra a group of musicians who play different kinds of instruments and perform together. [3 definitions]
orchid a plant that bears showy flowers. Most orchids are found in the tropics. [3 definitions]
ordain to admit to the clergy as a priest, minister, or rabbi in a formal ceremony. [2 definitions]
ordeal a painful, difficult experience, or test of one's character.
order a direction or command. [10 definitions]
orderly arranged in a neat way; in order. [4 definitions]
ordinal number any number that indicates a position in a numbered order. "First," "third," "fifteenth," and "thousandth" are ordinal numbers.
ordinarily as a rule; usually.
ordinary usual or normal. [3 definitions]
Ore. an abbreviation for Oregon.
ore a rock or mineral from which a metal or other useful substance can be removed.