oilseed

noun

By · According to Wiktionary data (CC BY-SA) ·

"oilseed" is a 7-letter English headword indexed on PlainSpell.

The verdict

“oilseed” is uncommon English (frequency #80,727 among 1,431 “O” headwords), classed as a noun. The kind of spelling people second-guess.

#80,727
frequency rank, English
1,431
“O” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The seed of any of several plants which are used commercially as a source of vegetable oil.

Corpus desk

Index EN-oilseed · oilseed · English

oilseed · rank #80,727 · 0 variants · 0 confusables

  • FREQ-RARE #80,727
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH OISE

Nearest frequency peer: OISE (+1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “oilseed”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “oilseed” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for oilseed
PropertyValue
Headwordoilseed
LanguageEnglish
Part of speechNoun
Letters7
Frequency rank#80,727
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “oilseed” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).oilseedfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “OISE” (#80,728), “Ogier” (#80,723), “Oedipal” (#80,721). Among 1,431 “O” headwords, “oilseed” is #80,727. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

oilseed is uncommon English at frequency #80,727 among 1,431 “O” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for oilseed in our index, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From oil + seed. The correct English form is oilseed, spelled O-I-L-S-E-E-D.

Definition

  1. 1
    The seed of any of several plants which are used commercially as a source of vegetable oil.
  2. 2
    The plant that yields such seed.
  3. 3
    Synonym of milium (“keratin-filled cyst”).

Recorded use

Wiktionary example

These source excerpts show how oilseed appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Ukraine’s exports of grain and oilseeds have mostly stopped and Russia’s are threatened.

Etymology

From oil + seed.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "oilseed"?
"oilseed" is spelled O-I-L-S-E-E-D.
What does "oilseed" mean?
As a noun, "oilseed" means: The seed of any of several plants which are used commercially as a source of vegetable oil.
What is the origin of the word "oilseed"?
From oil + seed. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "oilseed", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Oedipal#80,721Myerson#80,693plumper#80,761plunket#80,762

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list