at least
 at least
  1 : not less than a specified amount, level, etc.
   At least once a year, we visit our grandparents.
   We meet at least once a month. = We meet once a month at least.
   You must be at least 21 years of age to enter.
   He was at least six feet tall.
   He must have at least 300 CDs!
  2
   — used to say that something (such as a bad situation) could be or have been worse
   The weather was cold, but at least it didn't rain.
   I was tired and hungry, but at least I was free.
   We don't have much money, but at least we still have each other.
  
  3
   — used to indicate the smallest or easiest thing that someone can or should do
   Well, he could have at least apologized.
  
  4 a
   — used to indicate that the truth of a statement might change or has changed
   We're going to have a picnic, at least if it doesn't rain.
   I'm fine for now at least. [=I'm fine for now although I may not be fine later]
   He was unknown in the music world, at least until recently.
  
  4 b
   — used to indicate that the truth of a previous statement is not certain
   Her name is Sue, or at least I think it is.
   He is coming today. At least that's what he told me.
  
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 Main Entry: least