to kill by heat

praying earnestly

to pray earnestly

sand heated by the sun / same as above

older sister

an iron (for pressing clothes)

expresses surprise / expresses affirmation / used to call attention / expresses a grunt or pain / (colloquial) expresses a calm positive response: yeah

island

root (of a plant); (frequently) tree roots above the surface of the ground / root (of an issue), foundation, origin

練り歯磨き, 練歯磨き, 練歯磨: toothpaste (paste for cleaning the teeth)