signal
/ˈsɪɡnəl/
B1 · Intermediate★★★★☆
Simple Meaning
a sound, light, or movement that gives information or tells someone to do something.
When to Use
💬Daily Conversation💼Workplace English⚙️Technical
Intermediate — can handle common situations
Examples in Conversation
“Wait for the signal before you cross the street.”
“My phone has no signal here — can I use yours?”
Learning Path
▶Full Definition
A sequence of states representing an encoded message in a communication channel.