el esfuerzo - effort, use of resources to accomplish an endSpanish example: La cortadora automática corta el césped sin esfuerzo.
English example: The automatic lawnmower effortlessly mows the lawn.
Source: el esfuerzo - effort, use of resources to accomplish an end (https://www.123teachme.com/spanish_feeds/word_of_the_day/2022/11/13)