x1 is a structure word of grammatical class x2, with meaning/function x3 in usage (language) x4.
x4 may be a specific usage (with an embedded language place) or a massified language description; x3 and x4 may be merely an example of cmavo usage or refer to an actual expression; cmavo list, if physical object (= (loi) ma'oste); referring to the mental construct (e.g. propose adding a new cmavo to the cmavo list = ma'orpoi, ma'orselcmi, ma'orselste). See also gismu, lujvo, gerna, smuni, valsi.