追い切り is read as おいきり (oikiri) and means trial.
おいきり
oikiri
ついか
addition
ついほう
elimination (e.g. of poverty)
おう
to be pressed (e.g. for time)
おいて
favorable condition (favourable)
ついきゅう
pursuit (of a goal, ideal, etc.)
おいこむ
to have two strikes
おいつく
to be compensated
おいだす
to expel
investigation (e.g. academically, of the unknown)
ついとつ
rear-end collision
おいこす
to pass (e.g. car)
おっかける
to chase