giantess
巨大娘 巨大少女 거대소녀 巨大カップル 巨大ヒロイン 巨女
A female giant. Basically this means any female character who appears significantly larger than her normal-sized surroundings.
They are usually depicted in a specific fetish involving them causing destruction to their surroundings.
See also
This tag implicates giant (learn more).