argument
...have an argument with somebody about...

clench
to clench an argument

compelling
the most compelling argument

flimsy
a flimsy argument

forceful
a forceful argument

invalid
inválido

maintain
to maintain an argument

meat
there is no meat in his argument

overstrain
to overstrain an argument

peg
that's a peg to hang an argument on

sound
som

specious
specious argument

stand
does the argument stand?

stock
stock argument

substance
the argument is of little substance

sustain
to sustain an argument

thin
thin argument

tortuous
a tortuous argument

unsound
unsound argument

weigh in
to weigh in with an argument