good answer, excellent answer, clever or correct answer

to be astonished, surprised, amazed, startled

to get a big surprise; to be astonished

lo and behold

(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.

the whole, entire

originally, from the beginning

(education) class (group of students in a regularly scheduled meeting with a teacher) / class of things (typically products) sharing certain features / (programming, object-oriented programming) class

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend