Mass
baccalaureate service
bedtime prayer
camp meeting
celebration
ceremonial
ceremony
church
church service
commencement
compline
convocation
devotions
divine service
duty
empty formality
evening devotions
evensong
exercise
exercises
form
form of worship
formal
formality
formula
formulary
function
graduation
graduation exercises
holy rite
inaugural
inauguration
initiation
institution
lauds
matins
meeting
mode of worship
morning devotions
mummery
mystery
night song
none
nones
novena
observance
office
order of worship
ordinance
performance
sacrament
laity
lay
Scripture
catechism
creed
dogma
iconography
incantation
invocation
mythology
priesthood
ritual
symbolism
teaching
theology