US /ˈtɹiː.zən/
noun Freq #6654

Meanings

  1. 1
    noun

    The crime of betraying one’s own country.

    Treaſon doth never [pro]ſper: what's the reaſon? / For yf yt [pro]ſper none dare call yt treaſon.

  2. 2
    noun

    an act of deliberate betrayal

  3. 3
    noun

    a crime that undermines the offender's government

  4. 4
    noun

    disloyalty by virtue of subversive behavior

Thesaurus

Synonyms
1 noun · the crime of betraying... perfidiousnessperfidytreacherousnesstreachery
2 noun · an act of deliberate betrayal treachery
3 noun · a crime that undermines the... high treasonlese majesty
4 noun · disloyalty by virtue of... subversivenesstraitorousness
Word family
Forms treasonabletreasonably
Derived forms treasonabletreasonablenesstreasonablytreasonisttreasonistictreasonisticallytreasonoustreasonouslytreasonousness
Related forms seditiontraitortraitorliketraitorlytraitoroustraitorouslytraitorousness

Etymology

From Middle English tresoun, treison, from Anglo-Norman treson, from Old French traïson (“treason”), from trair, or from Latin trāditiō (“a giving up, handing over, surrender, delivery, tradition”), from trādō (“give up, hand over, deliver over, betray”, verb), from trāns- (“over, across”) + dō (“give”). Doublet of tradition.

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