signalling
part of speech
verb form (signal, signals, signalled, signalling — UK; signaled, signaling — US); noun (signalling — uncountable)
meaning for a pupil
1) Present participle of «signal»: giving a sign, sound or light to send a message. tree →
2) Showing that something is happening: «Dark clouds are signalling rain.» tree →
3) noun The system of signals on a railway or in the body: «railway signalling», «cell signalling». tree →
sense in the lessons
Safety: cyclists signal by putting out an arm; drivers signal before turning. In history: semaphore and Morse code signalling. In science, nerves send signals. Phrases: «signalling left», «hand signals», «signalling system».
examples
- The cyclist was signalling left. tree →
- The lifeguard is signalling for us to come in. tree →
- Dark clouds were signalling a storm. tree →
- Railway signalling stops trains from crashing. tree →
- Sailors used flags for signalling. tree →
- Always check the driver is signalling before you cross. tree →
note
Spelling: UK, Australia, NZ, Ireland, Canada often «signalling» (double l); US «signaling». Both correct in their places.
In the corpora
- Chameleons change colour mainly for mood, signalling and temperature.
- Chameleons change colour mainly for mood, signalling and temperature, not only to blend in.
Trees and pragmatics
Every meaning and example of «signalling» parsed by Mova, each sentence with its dependency tree and frames.