Search Result for "plainsong": 
Wordnet 3.0

NOUN (1)

1. a liturgical chant of the Roman Catholic Church;
[syn: plainsong, plainchant, Gregorian chant]



WordNet (r) 3.0 (2006):

plainsong
    n 1: a liturgical chant of the Roman Catholic Church [syn:
         plainsong, plainchant, Gregorian chant]