Womanise means to engage in flirtatious or sexual relationships with women without any serious commitment. There are many synonyms for this word that can be used as an alternative, including philander, playboy, womanizer, seducer, Don Juan, lady-killer, skirt-chaser, Lothario, and Casanova. Each of these words describes a man who is known for his promiscuous behavior and tendency to pursue women for sexual pleasure. These words may have different connotations, but they share the same underlying meaning of a man who is not committed to one woman and seeks to have relationships with many women without emotional attachment.