It is an idiom. It is referring to the large quantity of faces, not literally a sea of heads.
The literary device that is used here is repetition.
A literary device is a way a person writes. Depending on what type of message a writer wishes to deliver, they will use a specific literary device. Two types are literary elements, such as the plot or setting, and literary techniques, such as metaphor and simile.
literary device
cartoon
Kenning
The literary device that seals swam freely through the icy sea is assonance.
alliteration
The literary device used in this sentence is personification, as the seals are given human-like qualities by suggesting that they are swimming freely.
A Sea of Faces was created in 1975.
Onomatopoeia is the name of the literary device in which sounds are written into words.
No
Sea of Faces was created on 2004-02-24.
First-person narration is a literary device that deals with blatantly negative language.
The literary device that is used here is repetition.
Alliteration i.e. the repeated use of p as the starting letter for multiple words.Another example could beShe sells sea shells on the sea shore
A literary device is a way a person writes. Depending on what type of message a writer wishes to deliver, they will use a specific literary device. Two types are literary elements, such as the plot or setting, and literary techniques, such as metaphor and simile.
literary device