Which source would be best to use to find the meaning of the word ignorant?
a.
encyclopedia
b.
atlas
c.
dictionary
d.
thesaurus

C. Dictionary

Explanation:

A Dictionary is an accumulation of words and their definitions (and some of the time other data). Such accumulations are normally printed as books, however some are currently intended for use on PCs.

Dictionary initially originated from the Latin word dictionarius, signifying a manual or book of words. A Dictionary is a reference book or online asset containing an in sequential order rundown of words, with data given for each word.

showing or having an insensitive and cruel disregard for others. (so basically being heartless)

hope this : )