Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun grail
2 senses of grail
Sense 1
grail -- (the object of any prolonged endeavor)
=> aim, object, objective, target -- (the goal intended to be attained (and which is believed to be attainable); "the sole object of her trip was to see her children")
Sense 2
grail, Holy Grail, Sangraal -- ((legend) chalice used by Christ at the Last Supper)
INSTANCE OF=> chalice, goblet -- (a bowl-shaped drinking vessel; especially the Eucharistic cup)