1) About 2) Almost 3) Around 4) Close to 5) Generally 6) Give or take a few 7) Going on for 8) In the order of 9) In the region of 10) Just about 11) More or less 12) Nearly 13) Or so 14) Roughly 15) Roughly speaking 16) Round about 17) Some 18) Something like 19) Thereabouts 1) About 2) Around 3) Circa 4) Close to 5) Give or take 6) More or less 7) Plusorminus 8) Roos 9) Roughly 10) Say 11) Some 
• (adv.) With approximation; so as to approximate; nearly.
Ap·prox'i·mate·ly adverb With approximation; so as to approximate; nearly. 
[adv] - (of quantities) imprecise but fairly close to correct
about adverb (of quantities) imprecise but fairly close to correct; `lasted approximately an hour`; `in just about a minute`; `he`s about 30 years old`; `I`ve had about all I can stand`; `we meet about once a month`; `some forty people came`; `weighs aroun...