noun. The act of fastening or securing with a pin.

noun. The masonry that supports studwork.

verb. Present participle of pin.

noun. 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

"Conceivably, but I find it hard to follow the conventional market watchers in pinning such a sharp decline on a very slightly higher CPI number than expected."

pinning in  pinning up  

promise  

beginning  binning  dinning  finning  ginning  

pin