The words sodder, solder sound the same but have different meanings and spellings. Why do sodder, solder sound the same even though they are completely different words?
The answer is simple: sodder, solder are homophones of the English language.
Any of various fusible alloys, usually tin and lead, used to join metallic parts.
Something that joins or cements.
To unite or repair (parts, for example) with solder.
To join or unite: The agreement soldered the factions into an alliance.
Any of various fusible alloys, usually tin and lead, used to join metallic parts.
Something that joins or cements.
To unite or repair (parts, for example) with solder.
To join or unite: The agreement soldered the factions into an alliance.
Definitions from The American Heritage® Dictionary of the English Language, 4th Edition and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.
If they are spelled the same then they are also homographs (and homonyms); if they are spelled differently then they are also heterographs (literally "different writing").