noun
plus-minus; ±
Used in mathematical, scientific, or technical contexts to indicate a range or uncertainty, as in ±5. Also used colloquially to mean 'give or take' or 'more or less'.
誤差はプラスマイナス0.5%です。
The margin of error is plus or minus 0.5%.
予算はプラスマイナス10万円で見積もってください。
Please estimate the budget at around 100,000 yen, give or take.