HB

Hard black (on lead pencils)

Hb

Haemoglobin

• roofless
• rooflessness
• rooflessnesses
• rooflike
• roof plate
• roof plates
• roof rack
• roof racks
• roofs
• roofscape
• roofscapes
• rooftop
• rooftops
• rooftree
• rooftrees
• roofy
• rooibos tea
• rooikat
• rooikats
• rooinek
• rooineks
• rook
• rooked
• rookeries
• rookery