1.
If you square something off, you alter it so that it has the shape of a square.
Peel a thick-skinned orange and ~ the ends with a sharp knife.
PHRASAL VERB: V P n (not pron)
2.
If one group or person squares off against or with another, they prepare to fight them. (mainly AM)
In Florida, farmers are squaring off against cities for rights to groundwater...
PHRASAL VERB: V P against