The noun form of the verb "laugh" is laughter, which refers to the action or sound of laughing. It is an uncountable noun in most contexts.

১. Laughing can be a gerund or a present participle, but the primary abstract noun is laughter.
২. Laughable is an adjective meaning something that is ridiculous or amusing.
৩. Laughingly is an adverb used to describe an action done while laughing.

অতিরিক্ত তথ্য: Laughter is often called "the best medicine" for its psychological benefits.