reunion

As a noun reunion

is meeting.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As nouns the difference between reunion and rencounter

is that reunion is meeting while rencounter is (archaic) an encounter between opposing forces; a conflict.

As a verb rencounter is

(archaic|transitive) to meet, encounter, come into contact with.

As nouns the difference between alumnus and reunion

is that alumnus is a male pupil or student while reunion is meeting.

As a noun reunion

is meeting.

As a verb reconcile is

to restore a friendly relationship; to bring back to harmony.

As a noun reunion

is meeting.

As an adjective undefined is

lacking a definition or value.

Reconciliment is a related term of reunion.

As a noun reunion is

meeting.