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least (EN)
determiner, adverb

This word can also be a form of:
little (adverb)

determiner “least”

least
  1. "most little" (modifying a noun)
    He earns the least money compared to his coworkers.

adverb “least”

least (more/most)
  1. used for forming superlatives of adjectives
    The fifth problem was the least difficult one.
  2. "most little" (modifies a verb)
    He always shows up when you least expect it.