Assignment and Reference book

Assignment noun - A piece of work that needs to be done regularly.

Reference book and assignment are semantically related. In some cases you can use "Reference book" instead a noun "Assignment".

Nearby Words: assign, assigned, assigning, assignation, assignable

Reference book noun - A book to which you can refer for authoritative facts.

Assignment and reference book are semantically related. Sometimes you can use "Assignment" instead a noun phrase "Reference book".