List of 13-letter words beginning with

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There are 7 thirteen-letter words beginning with OPER

OPERABILITIES	• operabilities n. Plural of operability. • OPERABILITY n. the ability to be operated.
OPERATIONALLY	• operationally adv. In an operational manner; in accordance with an operation. • OPERATIONAL adv. of or relating to operation or to an operation.
OPERATIONISMS	• operationisms n. Plural of operationism. • OPERATIONISM n. the theory that defines scientific concepts by means of the operations used to prove or determine them, also OPERATIONALISM.
OPERATIONISTS	• operationists n. Plural of operationist. • OPERATIONIST n. an adherent of operationism.
OPERATIVENESS	• operativeness n. (Uncountable) The state or quality of being operative. • operativeness n. (Countable) The result or product of being operative. • OPERATIVE n. having the power of operating or acting.
OPERATIVITIES	• OPERATIVITY n. the state of being operative.
OPEROSENESSES	• OPEROSENESS n. the state of being operose.

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 1Word.ws and WikWik.org.

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English Wiktionary: 16 words
Scrabble in French: 1 word
Scrabble in Spanish: 1 word
Scrabble in Italian: 7 words
Scrabble in German: no word
Scrabble in Romanian: 12 words

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