Question

what is the key words??

Answer 1

a word which acts as the key to a cipher or code.
Keywords are ideas and topics that define what your content is about. In terms of SEO, they're the words and phrases that searchers enter into search engines, also called "search queries."

Answer 2

keywords are important phrases or sentences that are important in a paragraph. in exams teacher look for the keywords and give marks according to it. people highlight the keywords to remember it for a longer period of time

in computer especially in C ++, keywords are variables that are given by the user to the program.
they follow certain rules
*keywords are case sensitive
*keywords should not be predefined library names
*keywords must start with an alphabet and no special characters should be used accept@