What is the meaning of Martyr?

One who willingly accepts being put to death for adhering openly to one's religious beliefs; notably, saints canonized after martyrdom.

One who sacrifices their life, station, or something of great personal value, for the sake of principle or to sustain a cause.

One who suffers greatly and/or constantly, even involuntarily.

To make someone into a martyr by putting them to death for adhering to, or acting in accordance with, some belief, especially religious; to sacrifice on account of faith or profession.

To persecute.

To torment; to torture.

martyr

martyr

martyr, especially a Christian martyr

martyr

martyr

martyr

martyr

martyr

Source: wiktionary.org