Question

what does necessary mean

Answer 1

AnkonSaha necessary means something which is required or needed to be done

Answer 2

If you need help defining a term, you can go to dictionary.com :) That's what I usually do

Answer 3

(Adj.) Required to be done, achieved, or present; needed; essential: "members are admitted only after they have gained the necessary experience | it's not necessary for you to be here."