Question

what is the meaning of certainly and glanced​

Answer 1

Answer:

Certainly means sure and glanced means looked

Answer 2

certainly(adverb) comes from the word certain (adjective)

The meaning of certain is, "to be sure about something".

so what's the difference you may ask?

To understand it better, I'll give you a quick example,

(I'm "certain" I have my car keys)

here, I'm implying that, I'm sure i have my car keys.

(Tomorrow, I certainly will have my car keys)

here, I'm implying that it's most likely that tomorrow I will have my car keys, but there's some amount of uncertainty(unsurity)here.

now the word, glanced(adjective)

It comes from the word glance, which means to look at something(quickly, hurriedly)

Ex, I briefly glanced at the news paper.

Hope you understood the difference and the use of the word.