The definition of grateful is feeling or showing thanks or appreciation for something.(adjective)
An example of grateful is how you feel when you are thirsty and someone brings you an icy glass of water.
See grateful in Webster's New World College Dictionary
Origin: obs grate, pleasing (< L gratus: see grace) + -ful
See grateful in American Heritage Dictionary 4
Origin: From obsolete grate, pleasing
Origin: , from Latin grātus; see gwerə-2 in Indo-European roots.
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