The word laughter is a noun. ("Funny" things cause laughter, or laughing.) An adjective that describes things that can cause laughter could be "laughable" although it has a connotation of "ridiculous" rather than merely "funny."
Laughter is a noun, as in the 'sound' of laughing
Laughable
laughter and happiness
The adjective form for humor is humorous (more humorous, most humorous).The adverb form for humor is humorously: He humorously described an incident at the mini-mart.The noun form is humor; a singular, common, abstract noun. Another noun form is humorousness.The word humor is also a verb (humor, humors, humoring, humored).
The noun 'laughter' is an uncountable noun. Units of laughter are expressed in amounts such as some laughter, a lot of laughter, much laughter, etc.
Laughter is a noun, as in the 'sound' of laughing
Laughable
laughter and happiness
The adjective form for humor is humorous (more humorous, most humorous).The adverb form for humor is humorously: He humorously described an incident at the mini-mart.The noun form is humor; a singular, common, abstract noun. Another noun form is humorousness.The word humor is also a verb (humor, humors, humoring, humored).
The word laughed is the past participle of the verb to laugh, which is also an adjective. The present participle of a verb (the -ing word) is a verbal noun called a gerund, laughing; the present participle of the verb is also an adjective (laughingchildren).The abstract noun form for the verb to laugh is laughing(laughing makes you feel good). Other noun forms are the word laugh (a good laugh) and laughter (the sound of laughter).
The noun 'laughter' is an uncountable noun. Units of laughter are expressed in amounts such as some laughter, a lot of laughter, much laughter, etc.
In the sentence "Laughter bings joy to our lives." joy is used as a noun. Brings is a verb that says what joy does.
The noun infection has the adjective form infectious (which can also simply mean tending to spread, as in infectious laughter). The adverb form is infectiously.
Laughter.
Laughter is a beautiful sound. I was angered by his laughter after I fell.
laughter is not bad at all. There fore laughter is actually a good thing.
It's peals of laughter - meaning loud or ringing.