semi

:  semitrailer

:  semifinal —often used in plural

1a :  precisely half of: (1) :  forming a bisection of semidiameter (2) :  being a usually vertically bisected form of (a specified architectural feature) semidomeb :  half in quantity or value :  half of or occurring halfway through a specified period of time semiannual semimonthly — compare bi-

2 :  to some extent :  partly :  incompletely semicivilized semi-independent semidry — compare demi-, hemi-

3a :  partial :  incomplete semiconsciousness semidarknessb :  having some of the characteristics of semiporcelainc :  quasi- semigovernmental semimonastic

1 :  half semicircle

2 :  partly :  not completely

3 :  partial