The difference between Emergency and Er
Emergency is also noun with the meaning: a situation which poses an immediate risk and which requires urgent attention.
Er is also verb with the meaning: to utter the word "er" when hesitating in speech, found almost exclusively in the phrase um and er.
check bellow for the other definitions of Emergency and Er
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Emergency as a noun:
A situation which poses an immediate risk and which requires urgent attention.
Examples:
"Cardiac arrest is an emergency and if you find someone in cardiac arrest you should call 999 immediately."
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Emergency as a noun:
The department of a hospital that treats emergencies.
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Emergency as a noun:
An individual brought in at short notice to replace a member of staff, a player in a sporting team, etc.
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Emergency as a noun (archaic):
The quality of being emergent; sudden or unexpected appearance; an unforeseen occurrence.
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Er as a verb (informal):
To utter the word "er" when hesitating in speech, found almost exclusively in the phrase um and er.
Examples:
"He ummed and erred his way through the presentation."