# holdfast

> English word · Noun · frequency rank #81,407

## Definitions
1. Something to or by which an object can be securely fastened.
2. A root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
3. Actinomycosis.
4. The aspect of a character that experiences destructive temptation.

## Etymology
Deverbal from hold fast.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/holdfast