彼は妹のためにひときれのパンを切ってやった。

he; him; his; boyfriend

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

younger sister

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

for; for the sake of; to one's advantage; in favor of; in favour of; on behalf of; because of; as a result of

one; one

to break; to snap; to be cut; to split; to crack; to be injured; to wear out; to be worn out; to break; to burst; to collapse; to wear off; to stop working; to go dead; to expire (time limit, etc.); to run out; to become due; to run out (of stock, etc.); to be exhausted; to be used up; to be sold out; to be out of; to be broken off (e.g. of a relationship); to break up; to have severed ties; to be cut off; to be disconnected; to cut well; to be sharp; to be sharp-minded; to be keen; to be shrewd; to be quick-witted; to be able; to be short of; to drop under (a certain figure); to beat (e.g. a record time); to dry off; to curve; to veer; to shuffle (cards); to get angry; to snap; to blow one's top; to lose one's temper; to flip; to be able to do completely

bread; pastries (e.g. croissants); pastry-based products; pan; frying pan; panning (in a film)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to cut; to cut through; to perform (surgery); to sever (connections, ties); to turn off (i.e. the light); to terminate (i.e. a conversation); to hang up (the phone); to disconnect; to punch (a ticket); to tear off (a stub); to open (something sealed); to start; to set (a limit); to do (something) in less or within a certain time; to issue (stamps, vouchers, etc.); to reduce; to decrease; to discount; to shake off (water, etc.); to let drip-dry; to let drain; to cross; to traverse; to criticize sharply; to act decisively; to do (something noticeable); to go first; to make (certain facial expressions, in kabuki); to turn (a vehicle); to curl (a ball); to bend; to cut; to shuffle (cards); to dismiss; to sack; to let go; to expulse; to excommunicate; to dig (a groove); to cut (a stencil, on a mimeograph); to trump; (in Go) to isolate (an opponent's stone); to start a fire (with wood-wood friction or by striking a metal against stone); to draw (a shape) in the air (with a sword, etc.); to finish; to complete