List of 10-letter words beginning with

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There are 15 ten-letter words beginning with OPT

OPTATIVELY	• optatively adv. In an optative way. • OPTATIVE adv. expressing a wish.
OPTIMALISE	• optimalise v. Alternative form of optimalize. • OPTIMALISE v. to bring to the most desirable or most efficient state, also OPTIMALIZE.
OPTIMALITY	• optimality n. The property of being optimal. • OPTIMALITY n. the state of being optimal.
OPTIMALIZE	• optimalize v. Alternative form of optimize. • OPTIMALIZE v. to bring to the most desirable or most efficient state, also OPTIMALISE.
OPTIMISERS	• optimisers n. Plural of optimiser, an alternative spelling of optimizer. • OPTIMISER n. one who optimises, also OPTIMIZER.
OPTIMISING	• optimising v. Present participle of optimise. • OPTIMISE v. to make as effective as possible, also OPTIMIZE.
OPTIMISTIC	• optimistic adj. Expecting the best in all possible ways. • optimistic adj. (Computing) Allowing other processes to perform transactions on the same data at the same time, and… • OPTIMISTIC adj. having optimism, also OPTIMISTICAL.
OPTIMIZERS	• optimizers n. Plural of optimizer. • OPTIMIZER n. one who optimises, also OPTIMISER.
OPTIMIZING	• optimizing v. Present participle of optimize. • optimizing adj. Carrying out optimization. • OPTIMIZE v. to make as effective as possible, also OPTIMISE.
OPTIONALLY	• optionally adv. In an optional manner. Not mandatorily. • OPTIONAL adv. not compulsory.
OPTOLOGIES	• OPTOLOGY n. the study of sight.
OPTOLOGIST	• optologist n. One who studies optology. • OPTOLOGIST n. an optician.
OPTOMETERS	• optometers n. Plural of optometer. • OPTOMETER n. an instrument for testing vision.
OPTOMETRIC	• optometric adj. Of or pertaining to optometry. • OPTOMETRIC adj. relating to optometry, also OPTOMETRICAL.
OPTOPHONES	• optophones n. Plural of optophone. • OPTOPHONE n. a device transforming light into sound.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

English Wiktionary: 40 words
Scrabble in French: 19 words
Scrabble in Spanish: 21 words
Scrabble in Italian: 9 words
Scrabble in German: no word
Scrabble in Romanian: 38 words

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