Collocations for plea - noun

desperate, strong, urgent
emotional, heartfelt, impassioned, passionate
She made an emotional plea for her daughter's killer to be caught.

repeated
final
a final plea for his life

personal

make
issue
ignore

despite a/the plea
Despite pleas from his mother, the gunman refused to give himself up.

plea by, plea from
Hospital visiting hours were extended in response to pleas from patients.

plea for
The director of the charity made an impassioned plea for help.

guilty
not guilty
insanity (AmE)

enter
hear
change
accept
The prosecution accepted a plea of manslaughter.

support (esp. BrE)
These facts cannot support a plea of diminished responsibility.

reject

bargain, bargaining (usually plea-bargaining)
They received suspended prison sentences after plea-bargaining by their lawyers.

agreement (AmE)
The terms of the plea agreements weren't disclosed.

plea for
A senior judge heard a plea for damages on behalf of the accident victims.

plea of
Her lawyer entered a plea of guilty on her behalf.

cop a plea (= admit in court to being guilty of a small crime in the hope of receiving less severe punishment for a more serious crime)
The feds said that if I didn't cop a plea, I'd get about 15 years.