Englishfor English speakers
most
Determiner
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The majority of; much of; > 50%.
She does the most cleaning, but the least cooking.
—
The largest amount of.
Bob knows the most about cooking.
most
Adverb
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Having the largest amount of a characteristic in a group.
You must ask yourself what is most important.
Tony is the most successful.
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To a large degree; very.
That is most unusual.
casual
Adjective
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Something that is casual is relaxed and not formal.
Wear casual clothes to the party.
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If something is happens in a casual way it means it happens by chance.
There were only casual meetings - nothing that was planned.