1. Giving advice
   - advisory, consultative, consultive

See also: consult, informative, informatory

• thirties
• thirtieth
• thirty
• Thirty Years' War
• thirty-eight
• thirty-eighth
• thirty-fifth
• thirty-first
• thirty-five
• thirty-four
• thirty-fourth
• thirty-nine
• thirty-ninth
• thirty-one
• thirty-second
• thirty-second note
• thirty-second part
• thirty-seven
• thirty-seventh
• thirty-six
• thirty-sixth
• thirty-something
• thirty-third
• thirty-three
• thirty-two