"shield" in the noun sense
a protective covering or structure
2. shield, buckler
armor carried on the arm to intercept blows
3. carapace, shell, cuticle, shield
hard outer covering or case of certain organisms such as arthropods and turtles
"shield" in the verb sense
1. shield, screen
protect, hide, or conceal from danger or harm
2. harbor, harbour, shield
hold back a thought or feeling about
"She is harboring a grudge against him"
Source: WordNet® (An amazing lexical database of English)
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