Skip to main content
PlainSpell

reishi

noun

reishi is a noun meaning “The bracket fungus (mushroom) (Ganoderma lucidum and sometimes Ganoderma tsugae)” (English Wiktionary, September 2026). It is spelled R-E-I-S-H-I, and it appears about once in every 25 million words in written English (wordfreq, 2021 data). The plural of reishi is reishis.

What does reishi mean?

noun

  1. 1

    The bracket fungus (mushroom) (Ganoderma lucidum and sometimes Ganoderma tsugae).

  2. 2

    An extract of this fungus.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of reishi

  • reishis plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is reishi?

Reishi appears about once in every 25 million words in written English, the 152,206th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Where does reishi come from?

From Japanese 霊芝. Doublet of lingzhi.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).