Sign of the Day
duct
Sign for "duct" shows a hollow channel. Both 'C' hands move forward, representing a passage
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.
Both hands form an open 'C' shape
Both hands move forward linearly
Discussing construction, plumbing, HVAC systems
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 both hands into 'C' shapes
- Palms face each other, fingers point forward
- Place hands in front of chest, slightly apart
- Move both hands linearly forward
- Maintain parallel 'C' shapes
Practice signing "duct" while saying "air duct" or "ventilation duct."
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 air duct needed cleaning
Often used in technical or industrial contexts
Best fit: Discussing construction, plumbing, HVAC systems
Practice signing "duct" while saying "air duct" or "ventilation duct."
Ensure hands are parallel 'C' shapes; movement is linear and forward
The air duct needed cleaning
Common mistakes: Confusing with 'tube' or 'pipe' if hands are too close or too small
When not to use it: For a general 'tube' or 'pipe' sign if a simpler term exists
Regional note: Limited
Cultural note: None specific to this sign
1.[en] The air duct needs repair. / BSL:[DUCT AIR REPAIR NEED]
2.[en] Water flows through the duct. / BSL:[WATER FLOW THROUGH DUCT]
3.[en] Install the new duct. / BSL:[INSTALL NEW DUCT]
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
PIPE: Often one hand (G or C-hand) moving forward, sometimes tracing a narrower, rounder path. DUCT uses two parallel C-hands, emphasizing a wider, rectangular channel. TUBE: Can be similar to PIPE, often using a 'G' or 'C' handshape to show a hollow cylindrical object. DUCT specifically refers to a channel for services, whereas TUBE can be more general (e.g., a test tube)
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.