in a word

US /ɪn ə wɜːrd/
UK /ɪn ə wɜːrd/
"in a word" picture
1.

一言以蔽之, 簡而言之

briefly; in short

:
In a word, the plan is a disaster.
一言以蔽之,這個計畫是個災難。
He's charming, intelligent, and, in a word, perfect.
他迷人、聰明,一言以蔽之,完美。