13-Letter Words Containing TH

Here's the list of all the 896 13-Letter Words Containing TH in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Words (with Definitions and Examples)
authorization
1. a document giving an official instruction or command
2. the power or right to give orders or make decisions
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strengthening
1. becoming stronger
2. the act of increasing the strength of something
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authoritative
1. having authority or ascendancy or influence
2. of recognized authority or excellence
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psychotherapy
1. the branch of psychiatry concerned with psychological methods
2. the treatment of mental or emotional problems by psychological means
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authenticated
1. established as genuine
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13-Letter Words Containing TH