round up (v.)

• accumulate
• agglomerate
• aggregate
• aggroup
• amass
• assemble
• batch
• bulk
• bunch
• cage
• clump
• cluster
• collect
• colligate
• collocate
• combine
• compare
• compile
• conglomerate
• corral
• cull
• cumulate
• drive
• gather
• glean
• goad
• group
• grub
• herd
• join
• juxtapose
• lash
• mass
• match
• mobilize
• muster
• pair
• partner
• pick
• pluck
• prick
• raise
• rally
• shepherd
• spur
• whip
• wrangle