A language riddle

I've always mused about this significant quandary!
Here are some of the provided words that are in the English Dictionary and no other words rhyme with them.
It is sometimes said that the words:

orange, purple, and silver are the only words which rhyme with no other words.

Non-rhyming English words of two syllables or fewer

almond

aspirin

bachelor

chaos

chimney

circus

different (whether pronounced as two- or three-syllable word)

film

hostage

javelin

justice (only rhymes with proper nouns)

laundry

luggage

monster

month

citrus

office

olive

orange (only rhymes with proper nouns)

pint

penguin

pizza

promise (only rhymes with proper nouns)

purple

shadow

silver

transfer

vacuum