[いかす, ikasu] (v5s, vt) (1) to make (the best) use of; to leverage (skills, attributes, experience, etc.); to capitalise on (experience, etc); (2) to let live; to keep alive; (3) to revive; to resuscitate; (P)
[つるかめざん, tsurukamezan] (n) obtaining the respective numbers of cranes and tortoises from the total of their heads and legs; calculating the values of two unknown quantities from their unit total and the total of one of their attributes