noun
ADJECTIVE
▪ first , second , etc.
▪ wedding
▪ diamond , golden , silver , etc.
▪
The event celebrates its silver ~ this summer.
VERB + ANNIVERSARY
▪ celebrate , commemorate , honour/honor ( esp. AmE ), mark
▪
They held celebrations to mark the ~ of Mozart's death.
ANNIVERSARY + VERB
▪ be , fall
▪
The ~ of the founding of the charity falls in November.
▪ approach , come up
▪
Our 20th ~ is coming up.
ANNIVERSARY + NOUN
▪ celebration , party
▪ edition , issue
▪
the 100th ~ edition of this classic novel
▪ year
▪
the 200th ~ year of Darwin's birth
PREPOSITION
▪ ~ of
▪
the ~ of their son's death
▪ on an/the ~
▪
on the 20th ~ of his death
▪
He bought her a diamond ring on their tenth wedding ~.