pencil (pencils)

pen (pens)

eraser (erasers)

notebook (notebooks)

dictionary

notebook

book

journal

calculator

computer

notebook

printer

a sheet of paper

a piece of cardboard

a roll of tape

a stack of books

notebook

folder

pen

pencil

pencil

pen

marker

highlighter

book

notebook

magazine

journal

backpack

purse

luggage

briefcase

folder/binder

notebook

envelope

file cabinet