The word overseas is often used when referring to locations or situations beyond one's home country, typically separated by an ocean. It can describe travel, relocation, business dealings, or aspects of culture found outside of national borders. It serves to immediately place the subject in an international context.

The word oversees is a verb used when discussing the action of supervising or managing someone or something. It implies a position of responsibility and control, usually within a professional, organizational, or familial setting. Knowing when to use this word can provide clarity regarding authority and oversight in communication.

To summarize, overseas refers to international locations or activities beyond national borders, used both as an adjective and adverb. 'Oversees,' on the other hand, is a verb signifying the act of supervision or management. While they share phonetic similarities, their meanings are entirely unrelated, stressing the importance of context to ensure clarity in communication. Understanding these differences ensures effective expression and comprehensibility in both written and spoken English.