Does it mean nothing to males? (4)

I believe the answer is:

omen

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'does it mean' is the definition.
I can't judge whether this definition defines the answer.

'nothing to males?' is the wordplay.
'nothing' becomes 'O' (O resembles 0).
'to males?' becomes 'men' (man is a kind of male).
'o'+'men'='OMEN'

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(Other definitions for omen that I've seen before include "Harbinger, prophetic sign" , "Forewarning, harbinger" , "Sign of likely future event" , "Foreshadow" , "Warning - sign" .)

I've seen this clue in the Evening Standard.

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