Synonym: agitate, arouse, call, disturb, frighten, jar, jolt, shock, signal, startle, summons, unnerve, warning. Similar words: alarmed, salary, on a large scale, a large number of, farm, arm, harm, warm. Meaning: [ə'lɑːm] 
n. 1. fear resulting from the awareness of danger 2. a device that signals the occurrence of some undesirable event 3. an automatic signal (usually a sound) warning of danger 4. a clock that wakes sleeper at preset time. v. 1. fill with apprehension or alarm; cause to be unpleasantly surprised 2. warn or arouse to a sense of danger or call to a state of preparedness.
n. 1. fear resulting from the awareness of danger 2. a device that signals the occurrence of some undesirable event 3. an automatic signal (usually a sound) warning of danger 4. a clock that wakes sleeper at preset time. v. 1. fill with apprehension or alarm; cause to be unpleasantly surprised 2. warn or arouse to a sense of danger or call to a state of preparedness. 
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121. You need to type in a code number to deactivate the alarm.
122. His face registered no alarm at all when I told him the news.
123. If anyone tampers with this door it trips the alarm.
124. His family raised the alarm when he had not come home by 9pm.
125. In the event of fire, the alarm will sound at 15-second intervals/at intervals of 15 seconds.
126. The patient was okay - it was a false alarm.
127. The keys were lost during the panic over the fire alarm.
128. The burglars gained entry to the building after disabling the alarm.
129. The fire service was called out but it was a false alarm.
130. Then the fire alarm went off. I just grabbed my clothes and ran out.
131. It was some time before they managed to turn the alarm off.
132. His finger was within a hair's breadth of touching the alarm.
133. The guard loosed the dogs when the burglar alarm went off.
134. Did you follow the emergency procedure when you heard the alarm?
135. The prospect of becoming a father filled him with alarm.
136. Wire the thermometers up to trigger off an alarm bell if the temperature drops.
137. The guard raised the alarm when he discovered that six prisoners had escaped.
138. The sound of the fire alarm cut across his attempt to explain.
139. By the time the alarm was raised the intruders had escaped.
140. I was beginning to feel alarm(sentencedict.com), but kept it to myself so as not to worry our two friends.
141. His car alarm had been going off for two days and, as a result, the battery was flat.
142. I don't want to alarm you, but there's a strange man in your garden.
143. Dignity takes alarm at the unexpected sound of laughter. Mason Cooley 
144. In case it fires, ring the alarm bell.
145. Do you know how to deactivate the alarm?
145. Sentencedict.com try its best to collect and make good sentences.
146. But on some level, this is a false alarm.
147. Harsh reality rings alarm bell noisy to people.
148. In case of fire, alarm bell.
149. Just a false alarm probably, I told myself.
150. VILLAGERS : Hey what happened? False alarm ? Etc.