hindrance; impediment; obstruction / causing trouble to others; offense

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

a plan, planning, schedule, conception

to plan, to make a plan, to plot, to lay out

What? What did you say?

whatchamacallit, X

what

What?, Huh?

what / that thing (used in place of words you can't remember at the moment.)

what number, how many (used with a counter) / (used with も) many (used with a counter)