A quarrel is an argument over a disagreement. A squabble is a very loud or noisy argument over something trivial or unimportant. "Why don't you two stop quarrelling about it and let me do it?"

Do argue and squabble mean the same thing?

As nouns the difference between argument and squabble

is that argument is a fact or statement used to support a proposition; a reason while squabble is a minor fight or argument as between children, for example.

What is the synonym of squabble?

Some common synonyms of squabble are altercation, quarrel, and wrangle. While all these words mean "a noisy dispute usually marked by anger," squabble stresses childish and unseemly dispute over petty matters, but it need not imply bitterness or anger.