The term "straight flute" is often used to describe a type of musical instrument, specifically the flute, which has a straight and cylindrical shape. However, there are many other words and phrases that can be used to describe this type of flute. Some common synonyms include "cylindrical flute," "plain flute," "simple flute," and "straight-bored flute." Other less common synonyms include "linear flute," "direct flute," and "unembellished flute." While all of these words and phrases essentially describe the same type of instrument, using a variety of synonyms can help to add nuance and variety to descriptions of flutes and other musical instruments.