12-Letter Words Containing: A,I,S,S,T,T,U

• a person who jumps from aircraft using a parachute

• lacking systematic arrangement or method or organization

• Any salt or ester of thiosulfuric acid

• having or showing great excitement and interest

• defining rights and duties as opposed to giving the rules by which rights and duties are established

• any word or group of words functioning as a noun

• of or relating to the real nature or essential elements of something

• being on topic and prompting thought

• of or relating to or having the nature or function of a substantive (i.e. a noun or noun equivalent)

• According to the World Meteorological Organization, a mid-level, principal cloud type, generally formless and dark grey in colour, which forms from altostratus occurring in layers at the middle altitude of the troposphere (usually above 2400 metres). Nimbostratus usually brings precipitation as the mid-level clouds thicken and subside into the low level of the troposphere. Frontal or cyclonic lift can also carry the top of a deep nimbostratus layer into the high levels of the troposphere. Also classified or characterized as multi-level; abbreviated Ns.