carry, extend - continue or extend; "The civil war carried into the neighboring province"; "The disease extended into the remote mountain provinces"

lengthen - make longer; "Lengthen this skirt, please"

extend - prolong the time allowed for payment of; "extend the loan"

temporise, temporize - draw out a discussion or process in order to gain time; "The speaker temporized in order to delay the vote"

spin out, spin - prolong or extend; "spin out a visit"

keep on, retain, keep going, continue, keep - allow to remain in a place or position; "We cannot continue several servants any longer"; "She retains a lawyer"; "The family's fortune waned and they could not keep their household staff"; "Our grant has run out and we cannot keep you on"; "We kept the work going as long as we could"

preserve, uphold, carry on, continue, bear on - keep or maintain in unaltered condition; cause to remain or last; "preserve the peace in the family"; "continue the family tradition"; "Carry on the old traditions"