the day that is exactly a year or number of years after a person was born
birthday
15
the act of leaving your job and stopping working, usually because you are old
Retirement
15
a marriage ceremony and any celebrations such as a meal or a party that follow it
Wedding
15
the fact of finishing a degree or other course of study at a university or school
Graduation
15
a (usually religious) ceremony for burying or burning the body of a dead person
Funeral
15
the time when a baby or young animal comes out of its mother's body
Birth
15
a line that shows the time and the order in which events have happened
Timeline
20
(the situation of being faced with) something that needs great mental or physical effort in order to be done successfully and therefore tests a person's ability
Challenge
20
a result of a particular action or situation, often one that is bad or not convenient
Consequence
20
to increase in size or amount, or to become more advanced or developed
Grow
15
freedom from being governed or ruled by another country
Independence
15
an expression of good wishes or respect for someone that involves holding up and then drinking from a glass of alcohol, especially wine, after a short speech