The phrase "a brevity" is not correct in standard English usage.
The correct term is simply "brevity," which refers to the quality of being brief or concise.
Example: "In writing, brevity is essential to maintain the reader's interest."
Alternatives: "conciseness" or "shortness".
Twitter's 140-character format enforces a brevity of expression that fosters enormous creativity.
It is new territory for Williams, with a brevity and a strict whimsy you might encounter in Lydia Davis's work.
In the afternoon, a message from Peter Kovacs, a Times-Picayune managing editor, reached the paper's bureau in Washington, with a brevity of a wartime cable message.
Strachey, however, announced that he would write lives with "a brevity which excludes everything that is redundant and nothing that is significant," whether flattering to the subject or not.
He's spent his life producing some of the most extraordinary songs ever written, songs of astonishing complexity, layers upon layers, with a brevity of observation that could shame the great novelists.
From Stravinsky to Sibelius to Schoenberg (who "learned instrumental forms by subscribing to an encyclopedia, and waited for the S volume to arrive before composing a sonata"), the emerging heavyweights of the new music are sketched with a brevity and confidence that are the products, surely, of deep immersion and study.
Another time I said, "A bad analogy is like a cucumber". Brevity is the soul of twit.
He had hit him right if ever I saw a boxer hit right, with a classic brevity and conciseness.
A Little Brevity and Understanding Can Go a Long Way.
Like a series of epigrams, the music has a masterly brevity: when the information runs out, so does the song.
