9-Letter Words Starting With TRI

Here's the list of all the 196 9-Letter Words Starting With TRI 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)
trimester
1. a period of three months; especially one of the three three-month periods into which human pregnancy is divided
2. one of three divisions of an academic year
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tributary
1. a branch that flows into the main stream
2. (of a stream) flowing into a larger stream
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trimmings
1. the accessories that normally accompany (something or some activity)
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trickster
1. someone who plays practical jokes on others
2. someone who leads you to believe something that is not true
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triennial
1. the 300th anniversary (or the celebration of it)
2. occurring every third year or lasting 3 years
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trivially
1. with little effort
2. in a frivolously trivial manner
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tricyclic
1. an antidepressant drug that acts by blocking the reuptake of norepinephrine and serotonin and thus making more of those substances available to act on receptors in the brain
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triumphal
1. relating to or celebrating a triumph
2. joyful and proud especially because of triumph or success
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tricuspid
1. having three cusps or points (especially a molar tooth)
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tribology
1. the branch of engineering that deals with the interaction of surfaces in relative motion (as in bearings or gears): their design and friction and wear and lubrication
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trivalent
1. having a valence of three
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9-Letter Words Starting With TRI