▸ adjective
1 (of a building) allowing access to the upper floors by stairs only; having no lift:
a walk-up hotel.
2 denoting a travel fare or ticket at the price charged for immediate use rather than at the lower level provided when a customer makes a reservation in advance:
the one-way walk-up fare from Baltimore to San Francisco
online reservations are recommended, as there are limited walk-up tickets available.
▪ (of a building or service) easily accessible to pedestrians:
a walk-up food stand.