What is the use of meta tag in html

Answer 1

<meta> gives information which is not relevant for the user but for programs like crawlers. Besides the used charset (ASCII, ANSI, Unicode...) it can consist of things like <meta lang="en"> for the used language or <meta name="author" content="John Smith"> for the person who wrote the text.
See https://www.w3.org/TR/html401/struct/global.html#h-7.4.4.2 for more information.

Answer 2

meta tag is for language type. <meta charset="utf-8">

Answer 3

p3RON there are more uses of this meta tag

Answer 4

i know but i dont know very good speak english to say it like Kayx :)