Englishfor English speakers
insertion
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noun
the act of putting one thing into another
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noun
(= interpolation)
a message (spoken or written) that is introduced or inserted
with the help of his friend's interpolations his story was eventually told
with many insertions in the margins
head
Noun
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The head is the highest and most important part of the body.
He put his head on the desk and fell asleep.
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The head Is the owner of something.
After the problems, the head of the company left.
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The bathroom on a ship is called the head.
head
Verb
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To go in a direction is to head there.
Bill heads for the mall after work.