soonest

1. 1
   adverb

   Superlative of soon. Use this to say something happens earlier than all the rest.

   Whoever arrives soonest gets the best seat.

   Of all the trains, this one leaves soonest.

   Note
2. 2
   adverbcolloquial

   As quickly as possible, with no waiting at all.

   Like saying "right now" when something just cannot wait.

   Send me the report soonest, because the client is waiting.

   We need those parts soonest, or the line shuts down.

   Similarimmediately, promptly, urgently, pronto

3. 3
   adjective

   Superlative of soon. Use this for the earliest one out of several choices.

   The soonest available flight leaves at dawn.

   Take the soonest appointment they can offer you.

   Note

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