Grammar. 1  Also called objective case. (in English and some other languages) a case specialized for the use of a form as the object of a transitive verb or of a preposition, as him in The boy hit him, or me in He comes to me with his troubles. 2  a word in that case.
pinning-a mutual promise of a couple not to date anyone else; on college campuses it was once signaled by the giving of a fraternity pin. promise-a verbal commitment by one person to another agreeing to do (or not to do) something in the future.
In construction or renovation, underpinning is the process of strengthening the foundation of an existing building or other structure. Underpinning may be necessary for a variety of reasons: The original foundation is simply not strong or stable enough. The usage of the structure has changed.