Boyfriend
Definition 1 of 4
Pro Tip 1/3
Romantic Relationship
Use 'boyfriend' to specify a loving and committed relationship with a male partner. She introduced Tom as her boyfriend at the dinner party.
Pro Tip 2/3
Not Just Dating
'Boyfriend' suggests a stable relationship, not a male you're casually dating. Emma's boyfriend is coming over for a family dinner tonight.
Pro Tip 3/3
Exclusive Term
Use 'boyfriend' to indicate exclusivity, meaning not seeing anyone else romantically. I can't go on a date with you; I have a boyfriend.