n.
st~ of life
1) to live to, reach an ~
2) an advanced, (ripe) old, venerable ~ (she lived to a ripe old ~)
3) an early, tender, young ~ (at an early ~; at a very young ~)
4) middle ~
5) (a) college; high-school ( AE ); preschool; school ~
6) (a) retirement, retiring ( BE ) ~
7) a legal ~; the ~ of consent
8) at an ~ (at a tender ~; at the ~ of six)
9) of an ~ (people of all ~s)
10) ( misc. ) to come of ~ ('to reach one's majority'); to look one's ~ ('to not have a youthful appearance')
era
period
11) to usher in an ~ (to usher in the computer ~)
12) a golden; heroic ~
13) the Dark; Middle ~s (during the Middle ~s)
14) the Bronze; Ice; Iron; nuclear; Stone ~
15) in an ~ (in the nuclear ~)
16) for ~s
17) through the ~s