sheepskin

• POS: Noun
• HYPHEN: sheep=skin

CIDE DICTIONARY

sheepskin, n. 

•  The skin of a sheep; or, leather prepared from it.  [1913 Webster]
•  A diploma; -- so called because usually written or printed on parchment prepared from the skin of the sheep.  [1913 Webster]

OXFORD DICTIONARY

sheepskin, n.
1 a garment or rug of sheep's skin with the wool on.
2 leather from a sheep's skin used in bookbinding.

THESAURUS

sheepskin

affidavit, attestation, authority, authorization, bill of health, certificate, certificate of proficiency, certification, credential, deposition, diploma, navicert, notarized statement, note, sworn statement, testamur, testimonial, ticket, visa, vise, voucher, warrant, warranty, witness