Key Words: Nominal Syntactic features: Determiners, Definite, Agreement, and other relatedrnNominal Functional Categories; their Syntactic Projections inside DPs.rnThe study is devoted to nominal functional categories in Tigrinya within the theory of thernminimalist program. It centers on identifying the status and syntactic projections of thernconstituents in the internal structure of noun phrases in Tigrinya, and tries to give a unifiedrnaccount which links the following properties of Tigriny nominal phrases.rn• Most determiner phrases of Tigrinya have two synonymous forms. These forms can berndetermined by an overt or covert features of the functional heads checked by head noun.rn• Definiteness which is marked by a deictic or Agrs morpheme and not by a lexical article,rnacts like a syntactic feature on a par with the -feature, whereas indefiniteness in is notrnmarked at all.rn• Certain determiners with overt -features are strong and occur in different syntacticrnpositions in the extended functional projection.rn• Possessive forms are derived from an overt genitive case assigner or from head specrnagreement in Tigrinya.rnUnder the framework of Chomsky’s, (1995) Minimalist Program, and Kayne, (1994) LinearrnConstraint Axiom (LCA) a unifying account is given by assuming three functional headrnrnprojections. The functional heads have independent projections where different features arernchecked and licensed. Thus, Do of DP for the definiteness feature of the head noun is licensed, Kornof KP is a position for the dummy genitive case assigner, and Agro is the position wherernfeature of the head or of the possessor is checked.rnFinally, the proposed structure of Tigrinya nominal functional categories that includes lexical andrnfunctional projections