ennˈeagon /-ə-gon/ noun

(Gr gōniā angle) a polygon with nine angles, a nonagon

enneagonal /-agˈən-l/ adjective

ennˈeagram noun

(Gr gramma a letter) a nine-sided diagram, now often taken to represent the nine supposed different types of personality

enneahēˈdral adjective

enneahēˈdron noun

A solid figure with nine faces

Enneanˈdria plural noun

(Gr anēr, andros man or male) the ninth Linnaean class of plants, with nine stamens

enneanˈdrian adjective

enneanˈdrous adjective

ennˈeastyle adjective

(Gr stȳlos column) having nine columns