fromEnglish Grammar Today
More or lessmeans ‘mostly’, ‘nearly’ or ‘approximately’.We use it in mid position (between the subject and main verb, or after the modal verb or first auxiliary verb, or afterbeas a main verb). It is slightly informal:
We hadmore or lessfinished, so we decided to go for lunch.
We commonly use it after numbers and measurements:
It should cost you about £100,more or less.
Warning:
We don’t normally usemore or lessbefore people’s ages:
She’sabout35, I think.
Not:She’s more or less 35.
See also:
Approximations (around four o’clock)