1 to warm up

2 to heat up

3 hot (of weather)

4 heat

5 fervent

1 cordial

2 enthusiastic

3 passion

4 passionate

5 passionately

1 to love ardently

2 to adore

1 to fall head over heels in love

2 to be passionately in love

1 hot water

1 to drain the cup in one gulp (idiom)

1 ice or coals, whether hot or cold goes without saying (idiom); fig. sincerity is not expressed in words

1 frigid irony and scorching satire (idiom); to mock and ridicule

1 hasty men don't get to eat hot tofu (idiom)

2 one just has to be patient

3 haste will ruin everything

1 to carry on intimately with (idiom); ardent relationship (esp. between lovers)

2 billing and cooing