- The act of rending thanks, or expressing gratitude
for favors or mercies. - A public acknowledgment or celebration of divine
goodness; also, a day set apart for religious services, specially to
acknowledge the goodness of God, either in any remarkable deliverance
from calamities or danger, or in the ordinary dispensation of his
bounties.
Meaning of 'thanksgiving' (Princeton's WordNet)
1 . thanksgiving
[ n]
Meaning (1): - a short prayer of thanks before a meal