You know Common and Giant.

You can proficiently wield weapons with the Two-Handed property in one hand. When wielding a Versatile weapon, you always uses its higher damage die, whether it is wielded with one or two hands.

You are immune to Fire Damage.

You have expertise in Smith's Tools. All weapons have the Finesse and Thrown properties for you.

You have to get custom-made armor to fit your large body. You require twice as much food and drink each day. You do not fit in a normal bed.

You have disadvantage on Charisma checks with Dragons or Dragonborn who are not allied with you. Additionally, you have disadvantage on Saving throws you are made to roll by a Dragon or Dragonborn who is not allied with you.

You have disadvantage on stealth checks.

You are both a humanoid and a giant