leg
noun
uk/leɡ/ us [ C ] TRANSPORT
one of the parts of a long journey:
the first/final leg On the final leg of the flight we sat in economy class.
not have a leg to stand on
to not have any way of supporting your opinion or defending your position on something:
The State Department doesn't have a leg to stand on if it's going to contradict its own analysis.
have legs informal
an idea or suggestion that has legs is considered to be something worth developing further:
We're looking at the proposed legislation and we think it's got legs.