Vane & vain are the only ones I can think of.
vein
The homophone for the word "vain" is "vein".
The homophones for vane are vain and vein.
The word vain is an adjective, not a noun, and has no plural. The homophone nouns and their plurals are: vein - veins vane - vanes
The homophone for "farther" is "father." They are pronounced the same but have different meanings.
The Superficial Vein is not an antecubital vein.
The Brachial Vein is a deep vein in the arm.
The homophone for "to" is "too" or "two".
The homophone for "meant" is "mint".
The ulnar vein is a deep vein.
The Testicular Vein and then into the Penisial Vein.
The femoral vein is a muscular vein.