List of 8-letter words containing

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There are 20 eight-letter words containing ACTO

ABACTORS	• abactors n. Plural of abactor. • ABACTOR n. (obsolete) a cattle thief.
ACTORISH	• actorish adj. Of, pertaining to, or characteristic of an actor or theatrical acting; like an actor. • ACTORISH adj. like an actor.
COACTORS	• coactors n. Plural of coactor. • COACTOR n. one who acts together with another.
COFACTOR	• cofactor n. A contributing factor. • cofactor n. (Biochemistry) A substance, especially a coenzyme or a metal, that must be present for an enzyme to function. • cofactor n. (Biochemistry) A molecule that binds to and regulates the activity of a protein.
ENACTORS	• enactors n. Plural of enactor. • ENACTOR n. one who enacts.
ENACTORY	• enactory adj. Serving to enact something, such as a law. • ENACTORY adj. pertaining to the enactment of law.
EXACTORS	• exactors n. Plural of exactor. • EXACTOR n. one that exacts, also EXACTER.
FACTOIDS	• factoids n. Plural of factoid. • FACTOID n. a statement said so often that it is believed to be true.
FACTORED	• factored v. Simple past tense and past participle of factor. • FACTOR v. to express as a product of two or more quantities.
FACTOTUM	• factotum n. (Dated) A person having many diverse activities or responsibilities. • factotum n. (Dated) A general servant. • factotum n. An individual employed to do all sorts of duties.
IMPACTOR	• impactor n. Any of several machines or devices in which a part impacts on another, or on a material. • impactor n. An object which impacts another. • IMPACTOR n. one that impacts, also IMPACTER.
LACTONES	• lactones n. Plural of lactone. • LACTONE n. a cyclic ester.
LACTONIC	• lactonic adj. (Organic chemistry) Of, relating to, or derived from, lactone. • LACTONIC adj. of, pertaining to, or derived from, lactone, one of a series of organic compounds, regarded as anhydrides of certain hydroxy acids.
LACTOSES	• lactoses n. Plural of lactose. • LACTOSE n. a lactic sugar.
NONACTOR	• nonactor n. Someone who is not an actor. • NONACTOR n. a person who is not an actor.
REACTORS	• reactors n. Plural of reactor. • REACTOR n. one that reacts.
REDACTOR	• redactor n. A person who redacts; an editor or compiler of texts. • REDACTOR n. an editor.
TRACTORS	• tractors n. Plural of tractor. • tractors v. Third-person singular simple present indicative form of tractor. • TRACTOR n. a motor vehicle used for farming.
TRIACTOR	• TRIACTOR n. a wager whereby the bettor must pick the first three places in the correct order.
VARACTOR	• varactor n. (Electronics) A solid-state diode whose capacitance varies with the applied voltage. • VARACTOR n. a two-electrode semiconductor device.

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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English Wiktionary: 60 words
Scrabble in French: 7 words
Scrabble in Spanish: 21 words
Scrabble in Italian: 1 word
Scrabble in German: no word
Scrabble in Romanian: 19 words

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