Formats and concentration
What does cologne mean
Cologne can mean eau de cologne as a product style, or it can be used casually to mean fragrance, particularly in some men's marketing. Read the full label before inferring concentration, gender or a specific citrus smell.
A HUME Fragrance buying guide

Distinguish the exact term
Eau de cologne is more specific than the casual word cologne, but concentration conventions still vary. A product name may also use Cologne as part of its identity.
Avoid a gender rule
The word does not make a fragrance exclusively for men. Choose from the product description and your own preferences rather than interpreting the label as permission.
Check the actual format
A splash and an atomized product need their own directions. Do not transfer an application routine solely because both products are called cologne.
Try this before you buy
Find the full product name and application method before deciding what cologne means in a particular listing.