noun or participle which takes the aux. verb suru; transitive verb; noun (common) (futsuumeishi)
to keep (e.g. the lead); to maintain (a standard, situation, etc.)
Generated: This meaning refers to the act of sustaining or continuing something in its current state, often used in contexts such as competitions or performance.
Generated: This meaning specifically refers to serving in tennis while maintaining control and not losing the service game, which is important for winning.