-ion
/ən/suffix
1- forming nouns denoting verbal action构成表示言语活动的名词:
communion.
1.1
- denoting an instance of this表示一次此类行动:
a rebellion.
1.2
- denoting a resulting state or product表示作为结果的一种状态(或事物):
oblivion
opinion.
USAGE
The suffix -ion is usually found preceded by s (-sion), t (-tion), or x(-xion).
词源
via French from Latin -ion-.