 As noted above, modals seem to come in various flavours (doxastic, metaphysical, logical, deontic, practical…). It is tempting to treat these as ambiguities involving the modal term. However, it is worth noting that other treatments abound. Kratzer (1983) treats modals as univocal but indexical: they get their differing interpretations by taking in different input sets of worlds and orderings induced on the relevant sets. If this is right, it may well be that what looks like an ambiguity should actually be treated as a matter of straightforward indexicality (much like ‘I’ is not ambiguous but indexical).