1. (of petrol) not containing tetraethyl lead
   - lead-free

See also: leadless, unleaded

• Heloderma suspectum
• Helodermatidae
• helot
• Helotiaceae
• Helotiales
• helotism
• Helotium
• helotry
• help
• help oneself
• help out
• helpdesk
• helper
• helper cell
• helper T cell
• helpful
• helpfully
• helpfulness
• helping
• helping hand
• helpless
• helplessly
• helplessness
• helpline
• helpmate