Englishfor English speakers
protection
Noun
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Protection is keeping something or someone safe.
She ran away from her abusive husband to her brother for protection.
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A device used for safe sex e.g. condom.
I used protection so I wouldn't get her pregnant.
algorithm
Noun
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An algorithm is a set of steps that reliably solve certain types of problems, such as sorting things alphabetically or doing long division.
The new search algorithm was able to find a solution 5% faster than the previous algorithm.