›a telephone service provided by an organization or company to offer help and advice to people: call/ring/phone a helplineCall the Inland Revenue helpline with your queries.set up/run/operate a helplineA telephone helpline set up by the administrators was swamped by 9,000 calls in three days.a helpline for sbThe Counselling Service runs a helpline for people with debt problems.help line numbera 24-hour helplinea consumer/customer/legal helplinea free/emergency helpline