ˈbʌk.lə ˈbʌk.lɚ ˈkɛɹ.əˌpeɪs ˈkjuːtɪkəl ˈhɑːbə ˈhɑɹbəɹ skɹiːn ʃɛl protect, hide, or conceal from danger or harm hard outer covering or case of certain organisms such as arthropods and turtles hold back a thought or feeling about She is harboring a grudge against him armor carried on the arm to intercept blows a protective covering or structure