Pronunciation: [ɪz ˌɒn bˈak ɒv] (IPA) 
The spelling of the phrase "is on back of" can be broken down into its individual sounds using the International Phonetic Alphabet (IPA). "Is" is pronounced as /ɪz/, and "on" is pronounced as /ɑn/. "Back" is pronounced as /bæk/, with the "a" sound being pronounced as the short "a" sound like in "cat." Finally, "of" is pronounced as /ʌv/. Together, the phrase is pronounced as /ɪz ɑn bæk ʌv/.
The expression "is on the back of" refers to the act of being located or situated behind or at the rear of something or someone physically or metaphorically. This phrase typically denotes the positioning of one object or entity in relation to another.
When used in a physical context, it implies that an object or entity is positioned behind or at the rear of another object or entity. For example, if someone says, "The book is on the back of the shelf," it means that the book is placed towards the rear or behind other books on the shelf.
Metaphorically, "is on the back of" suggests being in a supportive or secondary position. It implies that one thing or person is providing assistance, protection, or guidance to another, who takes the lead. For instance, when someone says, "The success of the project is on the back of the team leader," it means that the team leader is responsible for ensuring the project's success by providing guidance and support to the team members.
Overall, the phrase "is on the back of" encompasses the concepts of physical position and metaphorical support or assistance, depicting a relationship where one thing or person is situated behind something or someone else.
