signal
/ˈsɪɡnəl/
B1 · Intermediate★★★★☆
Simple Meaning
一种声音、光线或动作，用于传递信息或指示某人做某事。
When to Use
💬Daily Conversation💼Workplace English⚙️Technical
Intermediate — can handle common situations
Examples in Conversation
“等信号灯亮了再过马路。”
“我的手机在这里没信号——我能用你的吗？”
Learning Path
▶Full Definition
A sequence of states representing an encoded message in a communication channel.