tamper

verb tam·per \ ˈtam-pər \
Updated on: 21 Nov 2017

Definition of tamper

tampered; tampering play \-p(ə-)riŋ\
intransitive verb
1 a : to interfere so as to weaken or change for the worse used with with
  • did not want to tamper with tradition
b : to try foolish or dangerous experiments used with with
c : to render something harmful or dangerous by altering its structure or composition
  • was charged with tampering with consumer products
2 : to carry on underhand or improper negotiations (as by bribery)

tamperer

play \-pər-ər\ noun

tamperproof

play \ˈtam-pər-ˌprüf\ adjective

Recent Examples of tamper from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tamper.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of tamper

probably from Middle French temprer to temper, mix, meddle — more at 2temper



TAMPER Defined for Kids

tamper

verb tam·per \ ˈtam-pər \

Definition of tamper for Students

tampered; tampering
: to interfere or change in a secret or incorrect way Someone was tampering with the official records.

Law Dictionary

tamper

intransitive verb tam·per

legal Definition of tamper

1 : to bring improper influence to bear (as by bribery or intimidation) used with with
  • tampered with the jurors
2 : to alter or interfere in an unauthorized or improper manner used with with
  • tampered with evidence


Seen and Heard

What made you want to look up tamper? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

ditzy

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!