1) Briefly 2) In a concise manner 3) In a few words 4) In brief 5) In short 6) Shortly 1) Briefly 2) In a nutshell 3) In a word 4) In short 
• (adv.) In a concise manner; briefly.
Con·cise'ly adverb In a concise manner; briefly. 
[adv] - in a concise manner
concisely In a concise manner; in a few words; for example, 'The history of this country is summed up concisely in this book'.
adverb in a concise manner; in a few words; `the history is summed up concisely in this book`; `she replied briefly`; `briefly, we have a problem`; `to put it shortly`