Oscitance and Obeisance

Oscitance noun - An involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom.

Obeisance and oscitance are semantically related. In some cases you can use "Obeisance" instead a noun "Oscitance".

Obeisance noun - Bending the head or body or knee as a sign of reverence or submission or shame or greeting.

Oscitance and obeisance are semantically related. Sometimes you can replace term "Oscitance" with "Obeisance", this nouns are similar.