Tsez, like most languages of the Nakh-Daghestanian language family to which
it belongs, has agreement in terms of noun class. Tsez distinguishes four
classes in the singular, but these are collapsed to two in the plural; agre
ement is shown on most vowel-initial verbs, on some vowel-initial adjective
s and adverbs, on some vowel-initial particles, and on some pronouns and nu
merals. After presenting the basic system, we investigate a number of more
complex instances. Under conjunction, Tsez sometimes uses a resolution rule
, sometimes adjacency, with interesting differences between 'and' - and 'or
' - conjunction. Personification in Tsez does not lead to change in noun cl
ass, even in cases of agreement with first or second person pronouns. Final
ly, Tsez allows the possibility of long distance agreement, whereby certain
matrix verbs can agree with a noun phrase in a lower clause. We show that
this phenomenon is intimately connected with the information structure of t
he clause, in particular that long distance agreement is required when the
noun phrase in the lower clause is topic of that clause; indeed, under cert
ain circumstances long distance agreement can serve distinctively to mark t
he topic status of a noun phrase in the lower clause.