verb

• (transitive) To cause (a person or animal) to be fat or fatter.
• (intransitive, of a person or animal) To become fat or fatter.
• (transitive) To make thick or thicker (something containing paper, often money).
• (intransitive) To become thick or thicker.
• (transitive) To make (soil) fertile and fruitful.
• (intransitive) To become fertile and fruitful.