be about; have to do with; be relevant to; refer, pertain, or relate to
- "There were lots of questions referring to her talk"
- "What's this novel all about?"
think of, regard, or classify under a subsuming principle or with a general group or in relation to another
- "This plant can be referred to a known species"
send or direct for treatment, information, or a decision: "refer a patient to a specialist"
- "refer a bill to a committee"