The spelling of the phrase "marches the cannon mouth" can be explained using the International Phonetic Alphabet (IPA). The word "marches" is spelled /ˈmɑːr.tʃɪz/ with a rounded vowel sound (/ɑː/) followed by the voiceless alveolar fricative sound (/tʃ/) and a plural marker (/ɪz/). The word "cannon" is spelled /ˈkæn.ən/, with a short vowel sound (/æ/) followed by the voiced alveolar nasal consonant /n/. Finally, the word "mouth" is spelled /maʊθ/, with a vowel sound that starts as a mid-central vowel sound (/ə/) and shifts to an open back rounded vowel sound (/aʊ/).
There is no standard dictionary definition for the phrase "marches the cannon mouth." It appears to be a specific phrase or expression that may not be widely recognized or used in general vocabulary. However, considering the individual components of the phrase, a possible interpretation can be derived:
"Marches" in this context can be understood as a verb describing movement, specifically in an organized and orderly manner, often associated with military formations or processions.
"The cannon" refers to a large artillery weapon that uses explosive force to propel a projectile.
"Mouth" refers to the opening or muzzle of a cannon from which the projectile is fired out.
Therefore, "marches the cannon mouth" could potentially imply a visual or metaphorical depiction of the movement of a cannon, possibly along with an accompanying military group or procession, as it advances or progresses forward in a disciplined manner with purpose or intent.
It is important to note that this analysis is speculative, as the specific context or usage of the phrase is not provided. Without more information, the interpretation may not accurately capture the intended meaning.