suffix forming nouns of action, condition, etc. (see -ION, -ATION, -ITION, -UTION).
Etymology: from or after F -tion or L -tio -tionis

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a suffix occurring in words of Latin origin, used to form abstract nouns from verbs or stems not identical with verbs, whether as expressing action (revolution; commendation), or a state (contrition; starvation), or associated meanings (relation; temptation).
Also, -ation, -cion, -ion, -sion, -xion.
[ < L -tion- (s. of -tio), equiv. to -t(us) ptp. suffix + -ion- -ION]

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-tion /-shən/
Forming nouns denoting action, condition, result or process
ORIGIN: From OFr, from L -tiō, -tiōnis

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-tion UK [ʃ(ə)n] US suffix
used with verbs to make nouns


(=something used for decorating, or the process of decorating)
Thesaurus: suffixeshyponym

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suffix added to verbs to make nouns.
1. the act or process of _____ing: »

Addition = the act or process of adding.

2. the condition of being _____ed: »

Exhaustion = the condition of being exhausted.

3. the result of _____ing; thing that was _____ed: »

Reflection = the result of reflecting.

4. thing or process that is _____ing, as in affliction, attraction.
[< Latin -tiō, -ōnis < -t-, stem ending of past participle + -iō, a noun suffix; or alteration of Old French -cion < Latin -tiō]

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suffix forming nouns of action, condition, etc., such as completion, relation
from Latin participial stems ending in -t + -ion

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-tion [-tion] ;
» ↑-ion

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a compound suffix, representing, often through Fr. -tion, OF. -cion, ME. -cio(u)n, L. -tio, -tiōn-em, consisting of -io, -ion-em added to the -t of a L. participial stem, as in rela-t-ion, comple-t-ion, frui-t-ion, muni-t-ion, protec-t-ion, deten-t-ion, op-t-ion: see -ation and -ion1. Rarer forms are -sion, -xion, as suspen-s-ion, infle-x-ion. The etymological meaning was primarily ‘the state or condition of being (what the pa. pple. imports)’, e.g. the condition of being related, completed, protected, detained, suspended, inflected, etc. But already in L. -tio was used for the action or process of relating, completing, suspending, etc., and also concretely or quasi-concretely, as in dictio, the condition of being said, the saying of something, a saying, a word; so nātio birth, a brood, a nation; ōrātio mode of speaking, an oration. In Eng. the most usual sense is that of a noun of action, equivalent to the native ending -ing1, and having also the kindred uses mentioned under the suffix.

Useful english dictionary. 2012.