i Register
In some senses, hubby is marked as informal, US. Watch for register when choosing this word.
noun
Husband.
Laura thought Jack was the most wonderful hubby in the world.
“But they have done more than talk — they have written — written to my hubby — I'm sure of it,” said the Man's Wife, and she pulled a letter from her husband out of her saddle-pocket and gave it to the Tertium Quid.
adj
Full of hubs or protuberances.
A road that has been frozen while muddy is hubby.