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Definition of pillowcase

pillowcase

/ˈpɪl.oʊˌkeɪs/
pil · low · case
Plural:pillowcases
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pillowcase Lexical Profile

pillowcase Game Scores & Validity

• noun

1

A removable cloth cover designed to encase a pillow, typically used to keep the pillow clean and provide a comfortable surface for sleeping.

Example

"She washed the bedding and slipped a fresh cotton pillowcase over her favorite memory foam pillow."

Synonyms
View all synonyms for pillowcase

• Nearby Words

pillar
pillbug
pillow
pillowcase
pilotfish
pilsbry snake
pimelea

Word Origin & Etymology

A compound word formed in English from 'pillow' (derived from Old English pyle) and 'case' (from Old French casse, meaning box or chest). First recorded usage dates to the early 15th century.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Pillowcase. In Wordmom Dictionary. Retrieved Oct 17, 2026, from https://wordmom.com/dictionary/pillowcase
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