* Mmụọ ozi: This literally translates to "spirit of message." It refers to a messenger from God or a spiritual being.
* Onye ozi: This translates to "messenger" and can be used to refer to an angel.
* Onye nsọ: This means "holy one" and can be used to refer to an angel, especially in a religious context.
* Mmụọ nsọ: This means "Holy Spirit" and can be used to refer to a divine being, though it may not be specific to angels.
The best choice depends on the specific context and what aspect of "angel" you want to emphasize.
Remember, Igbo is a rich language with nuanced meanings, so understanding the specific context is crucial for choosing the most appropriate term.