E'er is a contraction for the word "ever". The apostrophe represents the missing v, in the same way as the apostrophe represents the missing "no" in "can't", from "cannot"
LG LWHD1500ER 15000 BTU Window Air Conditioner has an energy efficiency rating of 12.0 EER, compared with other products that mostly do not pass 10.0 EER (EER meaning "Energy Efficiency Ratio" and a higher EER means that the air conditioner is more efficient)
The suffix -eer denotes a person who performs a specified action or activity, often used to form agent nouns or verbs indicating someone who engages in a particular occupation or activity.
Words that have the letters -eer in them are deer, beer, and cheer. Other words that have the letters -eer in them are auctioneer and career.
eer
Reindeer
Used in texts, "eer" means ever erring which implies ever making mistakes.
Extended ER diagram is a variant of ER diagram. EER include ER diagram + hierarichal concept. Extended ER diagram is also called Enhance ER diagram(EER).
auctioneerbeercareercheerdeerengineerfreerjeeroverseerpeerpioneerpuppeteersneersteerseersheervolunteer
estimated energy requirements
Cash-eer-ing
eer
seer engineer puppeteer