seconds

one that is number two in a series

one that is next after the first in rank, position, authority, or precedence

one that assists or supports another; especially : the assistant of a duelist or boxer

to give support or encouragement to : assist

to support (a fighting person or group) in combat : bring up reinforcements for

to support or assist in contention or debate

the 60th part of a minute of angular measure

the 60th part of a minute of time : 1/86,400 part of the mean solar day; specifically : the base unit of time in the International System of Units that is equal to the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom

an instant of time : moment