What does «onda» mean in Spanish?

Each of the elevations produced at the water surface.
Wave.
Undulation.
Curve formed by hair, a fabric, etc.
Modification of a physical medium that, as a consequence of an initial perturbation, propagates through the medium in the form of periodic oscillations.
Seat made of pita rope to lower the miners into the mine.

♦ Used in: Mexico
(onda corta) In radius, the one with a length between 10 and 50 m.
(onda de choque) That which accompanies projectiles that are faster than sound and which, when passing close to an observer, produce a snapping sound.
(onda eléctrica o hertziana) The one generated by an oscillatory current.
(onda larga) In radius, that of 1,000 m or less.
(onda luminosa) That which originates from a luminous body and transmits its light.
(onda normal) In radio, the 200 and 500
(onda sonora) The one that originates in an elastic body and transmits sound
(estar en la onda) To be informed, up-to-date or fashionable.
(buena onda) Enthusiasm, energy, positivity.
(mala onda) Negativity, bad predisposition.