RAC ticket
RAC means Reservation Against Cancellation. RAC passengers are generally allowed to board and may get a shared berth, with a chance of upgrade if cancellations happen.
WL ticket
WL means Wait List. A waitlisted ticket is not confirmed yet. Fully waitlisted e-tickets after chart preparation usually need extra caution and official verification.
Passenger-wise status matters
One PNR can have P1 confirmed, P2 RAC and P3 waitlisted. PNR Alert shows each passenger separately when the railway data provides it.