A palindrome is a word, phrase, number, or sequence of characters that reads the same forward and backward (e.g., "madam," "racecar," "level").
A) Acronym – A word formed from the initial letters of a phrase (e.g., NASA, ASAP), not related to reversing.
B) Euphemism – A polite or indirect expression replacing a harsh one (e.g., "passed away" instead of "died"), so incorrect.
D) Allegory – A symbolic story or narrative, not related to reading backward and forward.