ER (ERs plural )The ER is the part of a hospital where people who have severe injuries or sudden illnesses are taken for emergency treatment. ER is an abbreviation for `emergency room'. (AM) n-count in BRIT, use casualty, A & E
er
Er is used in writing to represent the sound that people make when they hesitate, especially while they decide what to say next.
I would challenge the, er, suggestion that we're in third place...
-er
1 suffix You add -er to many short adjectives to form comparatives. For example, the comparative of `nice' is `nicer'; the comparative of `happy' is `happier'. You also add it to some adverbs that do not end in -ly. For example, the comparative of `soon' is `sooner'.
2 suffix You add -er to verbs to form nouns which refer to a person, animal, or thing that does the action described by the verb; for example a `reader' is someone who reads and a `money-saver' is something that saves money.
3 suffix You add -er to words to form nouns which refer to a person who is associated or involved with the thing described by the word; for example a `pensioner' is someone who is entitled to a pension.
4 suffix You add -er to nouns to form nouns or adjectives which refer to things with a particular characteristic or feature; for example a `three-wheeler' is a vehicle with three wheels.
5 suffix You add -er to words to form nouns which refer to a person with a particular job. For example, someone who works in a mine is a `miner'.
6 suffix You add -er to the names of some places to form nouns which refer to a person who comes from that place. For example, someone who comes from London is a `Londoner'.
o'er
O'er means the same as `over'.
LITERARY, OLD-FASHIONED prep
As long as mist hangs o'er the mountains, the deeds of the brave will be remembered.