Is flock a collective noun and a common noun in grammar?

Flock is a collective noun and a common noun too as per the use of the word.
For instance, if we say "flock is coming" this is not specified that which flock what is the substitute of this word but we can get the substitute of the word reading the lines prior to it. If we write a flock of sheep it mens it is a common noun.




By Md. Asif Rahman
BBA(MIS)
University of Dhaka