Pronunciation: [d͡ʒˈa͡ʊnsɪz] (IPA) 
The spelling of the word "jounces" can be a bit tricky for non-native English speakers. The IPA phonetic transcription for this word is /ˈdʒaʊnsɪz/. The 'j' sound in English is represented by the letter 'j', while the 'ou' combination is pronounced as 'ow'. The letter 'c' in 'ounces' is silent, and the word has a stress on the first syllable. 'Jounces' is a verb which means to jolt or bounce in a rough, jerky manner.
"Jounces" is a verb that refers to the rapid, irregular and forceful movement or bouncing of an object, typically a vehicle or a person, over a rough or uneven surface. This term is often used to describe the jerking, jarring or jolting motion experienced during such movements.
In the context of transportation, jounces can describe the up and down, disruptive motions experienced by passengers or cargo when a vehicle traverses a bumpy road, uneven terrain or encounters sudden obstacles. It signifies a harsh or uncomfortable ride, with the vehicle's suspension system failing to provide a smooth journey.
The term can also be applied to human movement, describing energetic, vigorous or rough movements that may cause discomfort or unsteadiness in the person involved. For instance, someone running on an extremely uneven surface might experience jounces as their body is jolted up and down with each step.
The word "jounces" is typically used to convey a sense of abrupt and violent movement, often coupled with a lack of control. Its usage is commonly associated with negative connotations, as jounces are generally undesired and can cause physical discomfort, instability, or even damage to the object or person experiencing them.
The word "jounces" originates from the Old French word "jonce", which means a rush or a reed. It is derived from the Latin word "iuncus", which has the same meaning. Over time, "jonce" developed into "jounce" in English, referring to the jerking or jolting movement of a vehicle or object.
