What does «uf» mean in Spanish?

Interjection used to denote tiredness, annoyance, weariness, suffocation.

Examples of use in Spanish: "uf, estoy cansado de esta situación".

"¡uf! ¿toda esa tarea tengo que hacer?".

"uf, qué calor hace aquí".
Interjection used to indicate repugnance, disgust.

Examples of use in Spanish: "¡uf! ¡qué olor asqueroso!".
(UF) Abbreviation for unidad de fomento, a unit of account used in, readjustable according to inflation.
(uF) Microfarad, one millionth of a farad, unit of electrical capacitance. Also μF.