Question

what does stanza mean

Answer 1

a group of lines forming the basic recurring metrical unit in a poem; a verse.

Answer 2

the group of lines in a poem is a stanza  for example this is from a random poem:

no animals     in the Bible

only beasts     as  of the field

not us:     it says    breathed

into     in our image     of the dust

these lines are called a stanza