pressure
tissue
fissure
Some examples of words that sound like "sh" are "sugar" and "sherbet." In the case of "tissue," the "ss" sound is pronounced differently than "sh" and does not have the same sound. "Pressure" also does not have the "sh" sound.
Words for animal sounds are an example of onomatopoeia because they mimic the actual sounds made by the animals. For example, "meow" imitates the sound a cat makes, while "oink" imitates the sound a pig makes. The words themselves sound like the noises they are describing.
Mission, passion, pressure.
jeep
The words "bee," "bet," and "bay" can be visualized as a triangle on a vowel chart, with "bee" at the top, "bet" and "bay" forming the bottom corners.
Words that sound like the object's sound it is describing. For example buzz, swish, or zoom.
A word or a combination of words, whose sound seems to resemble the sound it denotes (for example: "hiss", "buzz", etc.) is called Onomatopoeia.
dhakdhaksdhaldhalsdhansakdhansaksdharmadharmasdharmicdharmsaladharmsalasdharmshaladharmshalasdharnadharnasdhobidhobisdholedholesdholldhollsdhooliesdhoolydhooradhoorasdhotidhootiedhootiesdhootisdhotidhotisdhourradhourrasdhowdhowsdhurnadhurnasdhurradhurrasdhurriedhurriesdhuti
Onomatopoeia is a sound word. For example, bam and boom are not names, but is used to describe sound.
The speed of sound changes clearly with temperature, a little bit with humidity - but not with air pressure (atmospheric pressure). The words "sound pressure at sea level" are incorrect and misleading in the case of "speed of sound". The temperature indication, however, is absolutely necessary. The changing of atmospheric pressure does not change the sound of musical instruments in a concert hall or in a room; see link: "Speed of Sound in Air and the effective Temperature".
There are several words, depending on exactly what is being measured (e.g. amplitude, volume, sound pressure, decibels).
No, both words sound like they could be examples, however, the sound of both words are extinct from their original word. An example of onomatopoeia would be ding-dong since it represents a sound of a bell.
The indefinite article an is used before words beginning with a vowel sound. For example: an hour, an excuse. Its abbreviated form a is used before words beginning with a consonant sound. For example: a union, a house