prevail-v; 3 Senses

Sense Number 1: win, emerge as dominant

Commentary: Syntax Is: NP1 PREVAIL[transitive] (OVER NP2)
NOTE: in this sense, NP2 may be omitted. To test this sense, try to add "over NP" to the sentence. If it is acceptable/natural/wouldn't make you cringe if you heard it, then use this sense. EXAMPLE: okay: He has said he is confident that democracy will prevail (over other forms of government.) not okay/weird: *Sunny skies will prevail (over cloudy skies.)
NOTE: if the context is too ambiguous to determine the existence of NP2, choose sense 2.

The champion prevailed, even though it was a hard fight.
The heroes prevailed against the enemy.
I am sure that justice and common sense will prevail in the end.
And did reason prevail over emotion?
This technology will prevail over competing methods.

VerbNet: NM
FrameNet: Finish_competition
PropBank: prevail.01
WordNet 3.0 Sense Numbers: 4

Sense Number 2: exist

Commentary: Syntax Is: NP1 PREVAIL[intransitive]
NOTE: suggests that NP is prevalent, and therefore may have some influence in a given context, but not that it necessarily defeats opposing forces
NOTE: if unsure of the inference of victory, choose this sense (see last example)

This is a region where snow and ice prevail.
Sunny skies prevail across the northeast.
The old customs still prevail in some parts of the country.
This attitude still prevails among the middle classes.
Fond memories will prevail for the team.
This technology will prevail. (in a context too ambiguous to determine if competing technologies are present)

VerbNet: exist-47.1-1
FrameNet: NM
PropBank: prevail.02
WordNet 3.0 Sense Numbers: 1, 2, 3

Sense Number 3: persuade or be persuaded

Commentary: Includes: PREVAIL UPON, PREVAIL ON

He prevailed upon her to visit his parents.
He was eventually prevailed upon to accept the appointment.

VerbNet: NM
FrameNet: Attempt_suasion
WordNet 3.0 Sense Numbers: 5