"tusk" in the noun sense
1. ivory, tusk
a hard smooth ivory colored dentine that makes up most of the tusks of elephants and walruses
a long pointed tooth specialized for fighting or digging especially in an elephant or walrus or hog
"tusk" in the verb sense
1. horn, tusk
stab or pierce with a horn or tusk
"the rhino horned the explorer"
2. tusk, detusk
remove the tusks of animals
"tusk an elephant"
Source: WordNet® (An amazing lexical database of English)
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