II.in [美 ɪn, 英 ɪn]副in often appears as the second element of certain verb structures in English (close in, hand in, stand in, etc). For translations, see the relevant verb entry (close, hand, stand, etc).
For some, the promise of change can be more assuring of survival, especially if the junior can see rising trends that his set-in-his-ways seniors can not.