lament,latch,latent,lavish,leeway

lament 哀悼

We lament the passing of your father.

latch 抓住、把門閂上

John was very lucky to have latched onto the office with a river view.
Don't forget to latch the door before you go to bed.

latent 潛在的

We finally recognized his latent talent.

lavish 濫施、揮霍、浪費

He lavished gifts on the doctor in hopes of getting surgery sooner.

leeway 餘裕、空間

Give me some leeway here or else I cannot finish this project.