There are very few true rhymes for **“orange.”** Commonly cited options include:

**Exact or very close rhymes**
- **sporange** — a rare botanical term meaning a spore case
- **Blorenge** — a hill in Wales, often cited as a rhyme
- **Gorringe** — a surname, sometimes used as a rhyme

**Near/slant rhymes**
- **door hinge**  
- **porridge**
- **storage**
- **forage**
- **shortage**
- **courage**
- **mortgage**
- **Arenge** / **arrange** — depending on accent, only a loose rhyme

So, if you want strict single-word rhymes, **“sporange”** is the classic answer.
