later later /ˈleɪtɝ/

adjective

1. () Coming at a subsequent time or stage  ( posterior , ulterior , later )
   coming at a subsequent time or stage
    Without ulterior argument
   without ulterior argument
    The mood posterior to
   the mood posterior to
   
2. At or toward an end or late period or stage of development  ( later , late )
   at or toward an end or late period or stage of development
    The late phase of feudalism
   the late phase of feudalism
    A later symptom of the disease
   a later symptom of the disease
    Later medical science could have saved the child
   later medical science could have saved the child
   

adverb

1. () Happening at a time subsequent to a reference time  ( subsequently , after , afterwards , afterward , later , later on )
   happening at a time subsequent to a reference time
    He apologized subsequently
   he apologized subsequently
    He's going to the store but he'll be back here later
   he's going to the store but he'll be back here later
    It didn't happen until afterward
   it didn't happen until afterward
    Two hours after that
   two hours after that
   
2. () At some eventual time in the future  ( by and by , later )
   at some eventual time in the future
    By and by he'll understand
   By and by he'll understand
    I'll see you later
   I'll see you later
   
3. Comparative of the adverb 'late'  ( later )
   comparative of the adverb 'late'
    He stayed later than you did
   he stayed later than you did
   

interjection

1. () [Informal] Informal parting words implying the intention to meet again in the future.  ( later [Informal] , laters [Informal, British] )
   Informal parting words implying the intention to meet again in the future.