* A misspelling: It could be a typo for "unique" or "unica" (which is a Spanish word meaning "only").
* A foreign word: It might be a word from another language.
* A specific term: It could be a specific term used in a particular field, like a technical term or a slang word.
To help me understand what you're looking for, please provide more context:
* Where did you see or hear this word?
* What was the situation?
* What was the overall topic or conversation?
With more information, I can give you a more accurate answer.