Describes objects that take up a lot of space or are awkward to handle because of their volume.
This luggage is bulky and hard to carry.
Describes a person's attitude as arrogant or overbearing; less common than the physical sense.
I can't stand his haughty attitude.
Standard kanji spelling for both senses.
Mixed kanji-kana spelling; less common but still encountered.
Compound of 嵩 (かさ, 'bulk, volume') and 高 (だか, 'high, large'). The figurative sense 'haughty' likely developed from the idea of an inflated self-importance.