approximately, about, around, roughly, in the neighbourhood of, in the area of, of the order of, something like, some, round about, close to, near to, just about, practically, more or less
or so, or thereabouts, there or thereabouts, give or take a few, plus or minus a few, give or take a bit, in round numbers
not far off, nearly, almost, approaching
British getting on for
circa
informal as near as dammit to
North American informal in the ballpark of
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