Mim-Nun-Ayn

To prevent or hinder or hold back, to impede/withhold/arrest/restrain, to keep/debar/preclude/inhibit, to forbid/prohibit/interdict, deny or refuse, also to protect or defend or guard a thing, dispute or contest, resist or withstand, to strengthen or fortify, to make a thing inaccessible or unapproachable or difficult of access.