Adjective (の)
Noun
Verb (する)
1.  greeting;  greetings;  salutation;  salute;  condolences;  congratulations
polite set phrase used when meeting or parting from somebody
2.  speech (congratulatory or appreciative);  address
3.  reply;  response
4.  revenge;  retaliation
5.  a fine thing to say
used sarcastically as a response to a rude remark; usu. in the form of ご挨拶
6.  dialoging (with another Zen practitioner to ascertain their level of enlightenment)
orig. meaning
7.  relationship (between people);  connection
8.  intervention;  mediation;  mediator