suborder (n.)

• biotype
• blood
• bracket
• branch
• caste
• category
• clan
• class
• division
• estate
• family
• genotype
• genus
• grade
• group
• grouping
• head
• heading
• kin
• kingdom
• label
• level
• order
• phylum
• pigeonhole
• position
• predicament
• race
• rank
• rating
• rubric
• section
• sept
• series
• set
• species
• station
• status
• strain
• stratum
• subclass
• subdivision
• subfamily
• subgenus
• subgroup
• subkingdom
• subspecies
• superclass
• superfamily
• superorder
• title
• tribe
• variety