Compound prepositions in Hebrew grammar refer to prepositions that are made up of more than one word. They can be a combination of verb and noun, verb and adverb, adjective and noun, etc. These prepositions are used to express ideas such as “instead of”, “outside of”, “in front of”, “behind”, amongst others. Compound prepositions hold great importance as they establish relationships between words, phrases or clauses within a sentence, therefore forming an essential grammar point for mastering Hebrew.