The words rings, wrings sound the same but have different meanings and spellings. Why do rings, wrings sound the same even though they are completely different words?
The answer is simple: rings, wrings are homophones of the English language.
Plural form of ring.
A gymnastics apparatus and discipline consisting of 2 rings suspended from a bar.
Third-person singular simple present indicative form of ring.
Third-person singular simple present indicative form of wring.
Definitions from Wiktionary, Creative Commons Attribution/Share-Alike License and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.