Alpa viram ka matlab- ,(comma)
Ardha viram ka matlab- ;(semicolon)
patra(letter) likhte samay kai jagah main alpa viram ka prayog hota hai.
Jab ham kisi vakya ke arambha main'haan' ya 'nahi' ka prayog karte hain,toh alpa viram prayukt hota hai.
virodhibhasi vakyon main ardha viram ka prayog hota hai.
karansuchak vakyon main ardha viram ka prayog hota hai.