(By Hedvig Skirgård): "An action nominalization derives from a verb and functions like a noun or noun phrase. The result denotes an action or state. In English, we can exemplify this with the enemy’s destruction of the city. Arrive - arriving could also serves as an example, or, in Spanish, La concentración de Sherlock Holmes duró cinco horas. ‘Sherlock Holmes’ concentration lasted five hours’. This feature targets phonologically bound overt nominalizers, including affixes, clitics, tonal markers, reduplication, ablaut, etc. There needs to be productive derivation. The derived noun may also refer to states or events in addition to actions. The nominalization strategy may also derive other types of nominalization. Compounds of a verb root and a noun meaning 'action', 'state' or 'event are not action nominalizations unless further grammaticalized."