A na-ekewa ọnụ ụzọ ọkụ ka ọ bụrụ ọnụ ụzọ ọkụ mechiri emechi yana ụzọ ọkụ na-emeghekarị. A na-emechi ọnụ ụzọ ọkụ na-emechi emechi n’okpuru mmetụta nke ọnụ ụzọ nso; Ya mere, mgbe ọkụ gbawara, ọ nwere ike igbochi mgbasa nke anwụrụ ọkụ ọkụ. Ọnụ ụzọ ọkụ na-emeghe na-emeghe n’okpuru mmetụta nke ọnụ ụzọ dị nso. Mgbe ọkụ gbawara, a ga-ahapụ mgba ọkụ ahụ nke ọma, a ga-emechikwa ọnụ ụzọ ọkụ dị nso n’okpuru mmetụta nke ọnụ ụzọ nso na ngwaọrụ nhazi.

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