/ ˈweɪfə(r); NAmE / noun
1.
a thin crisp light biscuit / cookie, often eaten with ice cream
2.
a very thin round piece of special bread given by the priest during Communion
3.
wafer (of sth) a very thin piece of sth
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WORD ORIGIN
late Middle English : from an Anglo-Norman French variant of Old French gaufre honeycomb, from Middle Low German wāfel waffle; compare with the food noun waffle .