What's the difference between alarm and siren?

Alarm


Definition:

  • (n.) A summons to arms, as on the approach of an enemy.
  • (n.) Any sound or information intended to give notice of approaching danger; a warning sound to arouse attention; a warning of danger.
  • (n.) A sudden attack; disturbance; broil.
  • (n.) Sudden surprise with fear or terror excited by apprehension of danger; in the military use, commonly, sudden apprehension of being attacked by surprise.
  • (n.) A mechanical contrivance for awaking persons from sleep, or rousing their attention; an alarum.
  • (v. t.) To call to arms for defense; to give notice to (any one) of approaching danger; to rouse to vigilance and action; to put on the alert.
  • (v. t.) To keep in excitement; to disturb.
  • (v. t.) To surprise with apprehension of danger; to fill with anxiety in regard to threatening evil; to excite with sudden fear.

Example Sentences:

  • (1) More evil than Clocky , the alarm clock that rolls away when you reach out to silence it, or the Puzzle Alarm , which makes you complete a simple puzzle before it'll go quiet, the Money Shredding Alarm Clock methodically destroys your cash unless you rouse yourself.
  • (2) Which must make yesterday's jobs figures doubly alarming for the coalition.
  • (3) Luciana Berger, Labour shadow secretary for mental health, also expressed alarm.
  • (4) The Cambridge-based couple felt ignored when tried to raise the alarm about the way their business – publisher Zenith – was treated by Lynden Scourfield, the former HBOS banker jailed last week, and David Mills’ Quayside Corporate Services.
  • (5) Not only was an alarming amount of fissile material going missing at the company, Nuclear Materials and Equipment Corporation (Numec), but it had been visited by a veritable who's-who of Israeli intelligence, including Rafael Eitan, described by the firm as an Israeli defence ministry "chemist", but, in fact, a top Mossad operative who went on to head Lakam.
  • (6) Talking ahead of a UN climate summit in Peru next month, Kim said he was alarmed by World Bank-commissioned research from the Potsdam Institute for Climate Impact Research in Germany, which said that as a result of past greenhouse gas emissions the world is condemned to unprecedented weather events.
  • (7) The most egregious failure was by WHO in the delay in sounding the alarm,” said Prof Ashish Jha, the director of the Harvard Global Health Institute.
  • (8) "We are alarmed to see the government is even wavering about continuing its programme of tracing, testing and destroying infected young ash trees.
  • (9) Privacy advocates argue this reflects an alarming ease of access, even though agencies should make every effort to ensure the invasion of privacy is justified by the importance to the public of solving a crime or recovering money.
  • (10) There was no looking back and as Hardouvelis nervously looked on – at times relieved, at times alarmed – it was quite clear that there was no stepping back either.
  • (11) Suffice to say, it was a long, difficult haul with various scares and alarms along the way.
  • (12) Severe overloading can increase microdamage alarmingly, its repair by BMUs too, and can cause woven bone formation, anarchic resorption and a regional acceleratory phenomenon.
  • (13) The literature on the possible risk of myasthenia gravis complicating pregnancy and delivery is sparse and partly contradictory but some of the reports on the number of perinatal and neonatal deaths are alarming.
  • (14) The second cause for alarm is more real – the insistence on imposing exemplary, or punitive, damages on those who don't join the regulator (and, in some circumstances, even those who do).
  • (15) The stimulus-response combination was classified into 4 categories according to SDT response: hits, misses, false alarms (FAs) and correct rejections (CRs).
  • (16) The interval distributions of neurons in isolated cerebral cortex resembled those of neurons in the intact cortex of an alarmed animal.
  • (17) The clinicians were asked to choose from a list the device that produced the alarm.
  • (18) On Monday, the interior minister, Miguel Ángel Osorio Chong, said the alarm had been raised immediately, but local media have cited prison sources saying it took half an hour for police to begin the search for Guzmán.
  • (19) The bank's speciality in debt instruments such as mortgage-related securities caused alarm as early as last summer.
  • (20) in the US the last ten years have witnessed an alarming recrudescence involving vast strata of the population and especially children, although this is masked by the paucity of reports, as is the case also in Italy.

Siren


Definition:

  • (n.) One of three sea nymphs, -- or, according to some writers, of two, -- said to frequent an island near the coast of Italy, and to sing with such sweetness that they lured mariners to destruction.
  • (n.) An enticing, dangerous woman.
  • (n.) Something which is insidious or deceptive.
  • (n.) A mermaid.
  • (n.) Any long, slender amphibian of the genus Siren or family Sirenidae, destitute of hind legs and pelvis, and having permanent external gills as well as lungs. They inhabit the swamps, lagoons, and ditches of the Southern United States. The more common species (Siren lacertina) is dull lead-gray in color, and becames two feet long.
  • (n.) An instrument for producing musical tones and for ascertaining the number of sound waves or vibrations per second which produce a note of a given pitch. The sounds are produced by a perforated rotating disk or disks. A form with two disks operated by steam or highly compressed air is used sounding an alarm to vessels in fog.
  • (a.) Of or pertaining to a siren; bewitching, like a siren; fascinating; alluring; as, a siren song.

Example Sentences:

  • (1) Dictated by underlying physicochemical constraints, deceived at times by the lulling tones of the siren entropy, and constantly vulnerable to the vagaries of other more pervasive forms of biological networking and information transfer encoded in the genes of virus and invading microorganisms, protein biorecognition in higher life forms, and particularly in mammals, represents the finely tuned molecular avenues for the genome to transfer its information to the next generation.
  • (2) Emergency medical services providers routinely respond to emergencies using lights and siren.
  • (3) Every now and then some rich Oga or Madam comes along in their bulletproof cars and wailing sirens, and distorts the delicate equilibrium of this body of traffic.
  • (4) Off the south-west coast of Ibiza stands Es Vedrà, a 400m-high limestone rock which legend suggests was the island of the Sirens who lured sailors to their deaths in Homer's Odyssey.
  • (5) At 6pm it sounds like a war zone outside the office: you can hear nothing but sirens and the almost continuous drone of helicopters overhead.
  • (6) horns of cars, sirens of emergency vehicles and alarm signals of railroad crossings, and then displays them as vibration to the driver.
  • (7) The strange thing is, society is perhaps not quite in the same shape as most of the political elite - or for that matter, the siren voices who would have you believe that "everyone's middle class nowadays" - suggest.
  • (8) As dusk fell across the city a motorcade of flashing lights and sirens escorted him to the airport, where he thanked his hosts and organisers and the vice-president, Joe Biden, escorted him to the plane.
  • (9) Updated at 11.10pm GMT 10.29pm GMT @RanaGaza, on Twitter here , uploads audio of sirens in Gaza City and two strikes moments ago.
  • (10) IDF (@IDFSpokesperson) A few minutes ago, sirens in Tel Aviv sent residents running for shelter.
  • (11) As Operation Protective Edge launched, sirens sounded over large areas of Israel's south and air raid shelters were opened.
  • (12) They should ignore the siren voices about Ukip pacts, which would put the party back for years.
  • (13) Video by Chris Whitworth and Alex Purcell Victimhood is a real, brutal fact, and Ben Carson's Holocaust logic denies that | Gayatri Devi Read more Asked about abortion, another siren call to voters who dominate the Republican primary, Carson said he would appoint supreme court judges to overturn Roe v Wade , the 1973 decision that enshrines the right.
  • (14) They moved rapidly, but without lights or sirens; they were not heading into an emergency.
  • (15) In Trafalgar Square at 6.40pm, sirens could be heard from almost all directions.
  • (16) "I was here since 7am and just heard sirens and it was over so fast," said Daniel McKenzie from Darlington.
  • (17) Their faces stared up from the dusty stretch of tarmac outside New Cairo's police academy, a silent roll call of butchery laid out like a human carpet amid a cacophony of chants, sirens and camera clicks in the morning sun.
  • (18) The British Wind Energy Association said it was delighted that Miliband had "rightly ignored the siren calls to abandon wind as the driving force for reaching the [low carbon] targets".
  • (19) I’ve never seen so many police here, against the blare of sirens.
  • (20) Its rocket fire has caused fear and panic among Israelis in south and central Israel, with sirens sounding many times a day warning people to seek shelter.