the word “palindrome” is not, itself, a palindrome.
“homonym” does not have a homonym
“antonym” has no opposite.*
“phonetically” cannot be spelled phonetically.
“mnemonic device” is actually not anything’s mnemonic device.
“onomatopoeia” is not, itself, an onomatopoeia.
finally, there is no other way of saying “synonym”.
*some argue that synonym is the opposite of antonym, following that the opposite meaning of “similar-meaning” is “opposite meaning”, when – in fact – the opposite of “similar-meaning” is “nothing in common whatsoever” which is *not* opposite. opposition requires a relationship to the former, like colors dripping in and out of negative film and photograph. antonymous meaning requires a relationship. Thus, there is some similarity. a good example: “small” and “large”. these two words are antonyms. however, they have something in common. they are both sizes. the opposite-of-synonym to “small” might be something absurd like “salmon”, or “gazebo”, or “and”. these are not antonyms. get it?