high-octane

[hahy-ok-teyn]

high-oc·tane

[hahy-ok-teyn]
adjective
1.
noting a gasoline with a relatively high octane number, characterized by high efficiency and freedom from knock.
2.
Informal. forceful or intense; dynamic; high-powered: high-octane efforts to obliterate the competition.

Origin:
1930–35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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High-octane is always a great word to know.
So is interrobang. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
Collins
World English Dictionary
high-octane
 
adj
1.  (of petrol) having a high octane number
2.  informal dynamic, forceful, or intense: high-octane drive and efficiency

Collins English Dictionary - Complete & Unabridged 10th Edition
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