in brief

in brief or in short or in a word  {adv. phr.}
Briefly; to give the meaning of what has been said or written in a word or in a few words; in summary.
The children could play as long as they liked, they had no work to do, and nobody scolded them; in short, they were happy.
The speaker didn't know his subject, nor did he speak well; in brief, he was disappointing.
John is smart, polite, and well-behaved. In a word, he is admirable.
Categories: adverb polite
Source: A Dictionary of American Idioms

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