needle – la aguja
Note: aguja mean both needle (sewing utensil) and needle (syringe).
To remember that needle is pronounced ah-goo-hah (aguja) in Spanish, use the following mnemonic:
Using a needle and thread, a goose has (aguja) patched up my clothing.
Aguja is feminine, so it's la aguja. Imagine a lady who is terrified of needles.