second hand second hand /ˈsɛkənd hænd/

adverb

1. From a source of previously owned goods  ( second hand )
   from a source of previously owned goods
    I prefer to buy second hand
   I prefer to buy second hand
   

noun

1. () An intermediate person; used in the phrase 'at second hand'  ( second hand )
   an intermediate person; used in the phrase 'at second hand'
    He could learn at second hand from books
   he could learn at second hand from books
   
2. Hand marking seconds on a timepiece  ( second hand , seconds hand )
   hand marking seconds on a timepiece
    The second hand of the clock seemed to tick slower as I awaited the announcement.
   The second hand of the clock seemed to tick slower as I awaited the announcement.