Leaf blade refers to the flattened, expanded part of a leaf that carries out photosynthesis. Synonyms for the word leaf blade include lamina, blade, flag, and frond. The term lamina is commonly used in botanical contexts to refer to the thin, flat structure of a leaf or petal. The word blade is often associated with a sharp-edged object, but it also refers to the leaf blade of a plant. Flag is a term used to describe the free or unattached portion of a plant leaf. Frond is typically used in reference to ferns or palms, which have large and complex leaf blades. These synonyms provide a more diverse and descriptive vocabulary to describe the form and function of plant leaves.