secure

/sɪ'kjƱr/　v)安全にする⇒確保・確実にする、固定する

get something　確保・確実にする

★ to obtain or achieve something, especially when this means using a lot of effort

【secure something】

・The team managed to secure a place in the finals

・The team ware unable to secure a victory.

・She secured 2000 votes.

◆席を確保   secure my seat

I need to secure my seat online now.

I secured our seat in the theatre.

fasten something   固定する

★ to attach or fasten something so that it does not move  

【secure something】

・He secured the boat with a rope.

【secure something to something】

・She secured the rope firmly to the back of the car.

◆シートベルトを固定   secure your seat blet

Secure/Fasten your seat blet.