Sign of the Day
mould fungus
The sign visually represents an unpleasant growth spreading on a surface, often with a negative NMF
The meta fields are doing real work here
This page turns your sign metadata into a fast, readable fingerprint of how the sign looks, feels, and fits into real conversation.
Dominant hand uses a bent 5-hand (clawed fingers). Non-dominant hand is a B-hand (flat hand)
Dominant hand's bent fingers wiggle while moving across the non-dominant palm
Discussing food spoilage, dampness, hygiene issues, or biological decay
Watch, build, and feel the movement
Use the numbered steps first, then check the sign anatomy cards to clean up the small details that make the sign look fluent instead of approximate.
How to form the sign
- Form non-dominant B-hand palm up
- Place dominant bent 5-hand on non-dominant palm
- Wiggle dominant fingers while moving slightly across palm
- Simultaneously show a slight nose scrunch
Practice signing "mould fungus" with an appropriate NMF
Signature details
Move from recognition to real-life use
Everything below is designed to make the sign sticky: where it feels natural, what learners miss, and how to use it without sounding robotic.
The bread has mould fungus
Often accompanied by NMFs showing disgust or concern about the decay
Best fit: Discussing food spoilage, dampness, hygiene issues, or biological decay
Practice signing "mould fungus" with an appropriate NMF
Ensure fingers wiggle and spread across the non-dominant palm, not just static. NMF is important for meaning
The bread has mould fungus
Common mistakes: Confusing with general "grow" or "spread" without the specific NMF
When not to use it: When discussing positive growth or non-fungal spreading
Regional note: Minor variations in finger wiggling or hand movement
Cultural note: General awareness of hygiene and food safety
1.[en] The bread has mould fungus. / BSL:[sign for bread] [sign for mould fungus]
2.[en] I saw mould fungus in the bathroom. / BSL:[sign for bathroom] [sign for mould fungus] [sign for see]
3.[en] Is this mould fungus dangerous? / BSL:[this] [sign for mould fungus] [sign for dangerous] [question sign]
Turn one sign into a small learning cluster
These links use your relationship fields, related vocabulary, and category context so the daily page becomes a launchpad instead of a dead end.
Word web
GROW (plant): Uses a dominant C-hand or O-hand moving upwards through the non-dominant O-hand or fist, showing vertical growth. "Mould fungus" shows horizontal, spreading growth on a surface. SPREAD (general): Often uses two open 5-hands moving apart from a central point. While "mould fungus" involves spreading, it's specific to an organic growth on a surface, using distinct handshapes and often a negative NMF. SMELL (bad): Typically involves a bent B-hand or 5-hand moving towards the nose, often with a strong negative NMF. "Mould fungus" focuses on the visual growth, not just the olfactory aspect
Build a rhythm around one sign a day
The archive rail lets people revisit recent daily picks, while the teaser card gives a reason to return instead of drifting away after one lesson.
Video credit: The demonstration video on this page is credited to SpreadTheSign. The video remains the property of the original rightholder.
All written explanations, learning notes, examples, comparisons, and page design on this page are SignDeaf educational material.