EVOC  Evocativity       Conveys at least a hint of what it’s naming
    BREV  Brevity           Shorter = better
    GREP  Greppability      Not a substring of common words
    GOOG  Googlability      Reasonably unique (and domain name available)
    PRON  Pronounceability  You can read it out loud when you see it
    SPEL  Spellability      You know how it’s spelled when you hear it
    VERB  Verbability       The name (or variant thereof) can be used as a verb

Source: http://messymatters.com/2011/10/31/nominology/