(n.) A feast or merry-making made by or for a family or business firm on taking possession of a new house or premises.

Kaffeeklatsch assemblee assembly assignation at home ball blowout brawl caucus cocktail party coffee klatch colloquium commission committee conclave concourse congregation congress conventicle convention convocation costume party council dance date diet dinner dinner party donation party eisteddfod entertainment festivity fete forgathering forum garden party gathering get-together hen party house party house-raising lawn party levee mask masque masquerade masquerade party meet meeting panel party plenum prom quorum rally reception rendezvous seance session shindig shindy shower sit-in sitting smoker soiree stag stag party surprise party symposium synod turnout