pinning

== English == === Pronunciation === IPA(key): /ˈpɪnɪŋ/ Rhymes: -ɪnɪŋ Homophone: penning (pin–pen merger) === Verb === pinning present participle and gerund of pin === Noun === pinning (countable and uncountable, plural pinnings) The action of the verb pin in any sense. A ceremony in which a pin badge is given. (physics) The establishment of the definite quantum state of a particle, or of the occupation number of a system of particles ==== Derived terms ==== ==== Translations ====