As a noun frog
is a small tailless amphibian of the order anura that typically hops or frog
can be (offensive) a french person or frog
can be a leather or fabric loop used to attach a sword or bayonet, or its scabbard, to a waist or shoulder belt.
As a verb frog
is to hunt or trap frogs or frog
can be to ornament or fasten a coat, etc with frogs or frog
can be to unravel (a knitted garment).
As an acronym bat is
best available technology; a principle applying to regulations]] on limiting pollutant [[discharge|discharges.