As nouns the difference between convocation and felicitation
is that convocation is the act of calling or assembling by summons while felicitation is the act of felicitating; a wishing of joy or happiness; congratulation.
convocation
English
Noun
(
en noun)
The act of calling or assembling by summons.
An assembly or meeting.
An assembly of the clergy, by their representatives, to consult on ecclesiastical affairs.
An academical assembly, in which the business of the university is transacted.
Coordinate terms
* (academic assembly) (l)
felicitation
English
Noun
(
en noun)
The act of felicitating; a wishing of joy or happiness; congratulation.
Usage notes
* A man is often wished congratulations on the event of his engagement or marriage. However, it is considered rude to "congratulate" a lady (for "catching" a husband?), so she is wished "felicitations" instead.