noun
Most common in expressions such as 英気を養う, meaning to restore or build up the energy, morale, or strength needed to face work or a challenge.
週末は温泉で英気を養った。
I restored my energy at a hot spring over the weekend.
Let's get plenty of rest and build up our strength for tomorrow's match.
noun
great wisdom; excellent disposition; outstanding spirit
A rarer, more literary or evaluative use referring to exceptional intelligence, character, or innate quality rather than physical or mental energy.
古い評伝では、英気がすぐれた才知や気質を指して使われることがある。
In older biographical writing, 英気 is sometimes used to refer to exceptional intellect or character.