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lost (EN)
adjective

This word can also be a form of:
lose (verb)

adjective “lost”

base form lost (more/most)
  1. unable to find one's way; not knowing where one is
    After several hours of wandering in the dense woods, they realized they were lost and had no way to contact help.
  2. unable to be found; missing
    I've searched everywhere for my passport, but it seems to be lost; I might have left it at the hotel.
  3. unable to understand or follow what is happening
    The math professor spoke so quickly that many students were completely lost by the end of the lecture.
  4. deeply absorbed in something; not noticing what is happening around
    Sitting by the window, she was so lost in her thoughts about the future that she didn't notice the storm approaching.
  5. no longer possessed or owned; gone
    Looking through old photographs, he felt a pang of nostalgia for his lost youth and carefree days.
  6. wasted; not used
    We spent too much time debating, and now our chance to win the contract is lost.