本当【ほんとう】
truth, reality, actuality, fact, proper, right, correct, official, genuine, authentic, real, natural, veritable
当然【とうぜん】
natural, right, proper, just, reasonable, appropriate, deserved, naturally, as a matter of course, rightly, deservedly, justly, of course
担当【たんとう】
being in charge (of an area of responsibility), being responsible (for a work role, etc.)
本当に【ほんとうに】
really, truly
当時【とうじ】
at that time, in those days
当たる【あたる】
to be hit, to strike, to touch, to be in contact, to be affixed, to be equivalent to, to be applicable, to apply to, to be right on the money (of a prediction, criticism, etc.), to be selected (in a lottery, etc.), to win, to be successful, to go well, to be a hit, to face, to confront, to lie (in the direction of), to undertake, to be assigned, to be stricken (by food poisoning, heat, etc.), to be afflicted, to be called on (e.g. by a teacher), to treat (esp. harshly), to lash out at, to be unnecessary, to be hitting well, to be on a hitting streak, to feel a bite (in fishing), (of fruit, etc.) to be bruised, to spoil, to feel (something) out, to probe into, to check (i.e. by comparison), to shave, to be a relative of a person, to be a ... in relation to ..., to stand in a relationship
当てる【あてる】
to hit, to expose, to apply (e.g. patch), to put on, to put against, to hold on, to hold against, to allot, to call on someone (e.g. in class), to guess (an answer), to make a hit (e.g. in a lottery)
当たり前【あたりまえ】
natural, reasonable, obvious, usual, common, ordinary, commonplace, the norm
相当【そうとう】
corresponding to (in meaning, function, etc.), being equivalent to, appropriate, suitable, befitting, proportionate, to be proportionate to, to be in keeping with, to be deserving of, to be worthy of, considerable, substantial, considerably, rather, quite, fairly, pretty
適当【てきとう】
suitable, proper, appropriate, adequate, fit, fair, perfunctory, half-minded, sloppy, lazy, careless, noncommittal, unreliable, irresponsible, haphazard
当たり【あたり】
hit, success, guess, prediction, affability, friendliness, sensation, touch, bruise (on fruit), situation in which a stone or chain of stones may be captured on the next move, bite (of a fish on a hook), strike, per, each
当て【あて】
aim, object, purpose, end, expectations, prospects, hopes, something that can be relied upon, snack served with alcoholic drink, pad, guard, blow, strike, addressed to, per
心当たり【こころあたり】
having in mind, happening to know of, idea
当日【とうじつ】
day in question, appointed day, that very day, the day (of issue, publication, etc.)
弁当【べんとう】
bento, Japanese box lunch
目当て【めあて】
mark, guide, landmark, purpose, aim, goal, intention, end, sight (on a firearm)
当初【とうしょ】
beginning, start, outset, at first, at the beginning, initially, originally
当局【とうきょく】
authorities, relevant authorities, authorities concerned, this office
当分【とうぶん】
for the present, for the time being, for a while (from now), for some time (to come)
お弁当【おべんとう】
bento, Japanese box lunch