The term 'small seed' can be described by three crossword solutions: PIP (3 letters), NUTLET (6 letters), and OVULE (5 letters). A PIP is a small, hard seed found in some fruits, such as apples. A nutlet is a small, hard seed found in some nuts, such as walnuts. An OVULE is a small, hard seed found in some plants, such as grasses. All three of these terms refer to a small seed, which can be found in various fruits, nuts, and plants.