meeting, gathering / society, association, club

diagram, figure, illustration

diagram / figure / illustration / chart

unexpectedly, suddenly

meeting / party; function

gathering; meeting / perceive; understand; comprehend / Alternative form of 絵 (e, “picture; drawing; painting”)

meet, assemble, gather / mediate

meeting / association / society

the diagram above; the top illustration

(software engineering) class diagram - A type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, and the relationships between the classes.