Word.ws English Dictionary

undersill

undersill adjective: beneath a sill.

Adjective

undersill (not comparable)

  1. Beneath a sill.
    • A vinyl undersill trim or finish trim should be used under windowsills to receive the cut edges of the siding.1975, Robert Scharff, The complete book of home remodeling, page 292

Noun

undersill (plural undersills)

  1. A sill placed underneath something.

Forms of undersill

pluralundersills

Origin of undersill

From under- + sill.

Questions about undersill

What does undersill mean?
Undersill means beneath a sill.
What part of speech is undersill?
Undersill can be an adjective or a noun.

Words near undersill in the dictionary

  1. undersigneds
  2. undersigner
  3. undersigners
  4. undersigning
  5. undersigns
  6. undersill
  7. undersills
  8. undersimplification
  9. undersimplifications
  10. undersincere
  11. undersing

Source and license

Adapted from Wiktionary: undersill (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-undersill.wav.

Cite this entry: “undersill.” Word.ws, https://word.ws/undersill. Based on Wiktionary, CC BY-SA 4.0.