(sports) A format of starting in certain racing sports, such as long-distance running, cycling and biathlon, where the competitors start at the same time and same place and proceed along the same course.

(idiomatic) I am not interested in the event and do not plan to attend. / Used other than figuratively or idiomatically: see start.

plural of starting fluid

(engineering) A volatile, flammable liquid which is used to aid the starting of internal combustion engines, especially during cold weather.

(baseball) A start in which a pitcher pitches for at least six full innings and allows three or fewer earned runs.

Something, especially a question or problem, to be tackled first.