Most of us say "they are fighting" if children or other persons quarrel over trivial matters. Actually fight verb is not used for that sentence. Fight word is used when two or more people fight with each other by involving physically and also when they fight with weapons. Especially it is used for violence activity.
You may ask which word we should use to express it. The correct word is 'Squabble'.
Part of speech: Verb and Noun
Meaning: Quarrelling loudly for unimportant things.
Let's see the usage of this word in below examples.
Examples of VERB:
Children are squabbling for TV remote to watch their favorite show.
It means 'Children are quarrelling loudly for TV remote'.
Sukhi is squabbling with her daughter-in-law for not making curry tasty.
This sentence means 'Sukhi is quarrelling with her daughter-in-law for not making curry tasty'.
Piyush squabbled with Nehal for using his mobile phone.
It means 'Piyush quarrelled with Nehal for a trivial matter.
Examples of NOUN:
Reema: Rita, why do you pay attention to children squabbles?
Reema asks Rita why she pays attention to children quarrels.
Article by Padmasri