The popular Port Out, Starboard Home story is catchy, but evidence is lacking. Most experts treat P.O.S.H. as a later backronym.
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Why “OK” may be the most successful joke in English
“OK” likely began as a playful abbreviation of “oll korrect” in 1839, then spread through politics and telegraphy into everyday English.
Why some English nouns exist only in the plural
Some English nouns are used only in plural form, like scissors and trousers. Learn why, plus how to use them in real sentences.
How “broadcast” went from scattering seed to radio
“Broadcast” began as a farming word for scattering seed widely. Later, it was applied to radio, TV, sports, and live video.
Inversion in Conditional Sentences Exercise
Level C1. Focus on formal conditional inversion with should, were, and had.

