Englishfor English speakers
spoiler
Noun
—
A spoiler is a person or thing that spoils something.
—
A spoiler is a description of an important plot development in a film or book to reduce surprise or suspense for first-time viewer or reader
—
Spoilers are flaps on the wing of an aircraft which can be projected in order to create drag and so reduce speed.
—
Spoiler is a device to reduce lift and increase downforce
aileron
Noun
—
The aileron is the hinged part on the trailing edge of an airplane wing, it is used to control longitudinal turns.