📒 a loud noise or a signal that warns people of danger or of a problem
📒 a device that warns people of a particular danger, or that a particular person is in danger
📒 a ringing sound or a tune played by a clock or your phone after you have set it to play at a particular time to wake you up
📒 fear and worry that somebody feels when something dangerous or unpleasant might happen
📒 if you say that alarm bells are ringing, you mean that people are starting to feel worried and to suspect that something is wrong