verb

pre·view | \ ˈprē-ˌvyü  \

previewed; previewing; previews

1: to see beforehand specifically : to view or to show in advance of public presentation

2: to give a preliminary survey of

pre·fix | \ ˈprē-ˌfiks  \

1: an affix attached to the beginning of a word, base, or phrase and serving to produce a derivative word or an inflectional form — compare SUFFIX

2: a title used before a person's name

 noun

pre·test | \ ˈprē-ˌtest  \

: a preliminary test: such as

a : a test of the effectiveness or safety of a product prior to its sale

b : a test to evaluate the preparedness of students for further studies

 verb

pre·vent | \ pri-ˈvent  \

prevented; preventing; prevents

a: to be in readiness for (something, such as an occasion)

b: to meet or satisfy in advance

c: to act ahead of

d: to go or arrive before

2: to deprive of power or hope of acting or succeeding

3: to keep from happening or existingsteps to prevent war

4: to hold or keep back : HINDER, STOP —often used with from

: to interpose an obstacle

 verb

pre·plan | \ ˌprē-ˈplan  \

variants: or pre-plan

preplanned or pre-planned; preplanning or pre-planning

: to plan in advance