How to sign: unknown or unspecified
"some lunatic drove into my car"; "some man telephoned while you were out"; "some day my prince will come"; "some enchanted evening";
How to sign: (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 around a hundre;
Similiar / Same: approximately, about, close to, roughly, more or less, or so, just about, around