covert
/ˈkʌvət; ?@ ˈkəuvɜ:rt; `kovɚt/ adj
concealed; not open; secret 隐蔽的; 不公开的; 秘密的
covert glances, threats, payments 偷偷的一瞥、 暗中的威胁、 秘密的付款
the covert activities of a spy 间谍的秘密活动.
covert / ˈkʌvə(r); `kʌvɚt/ n area of thick low bushes, trees, etc in which animals, esp hunted animals, hide 动物（尤指猎物）藏身的矮树丛、 树林等. Cf 参看 cover2 10.