侍Samurai. A person who wears a sword and serves his lord with martial arts. A person of considerable ability. A man of spirit. Abbreviation of "samurai office" and "subordinate samurai. A person who is attached to a person of rank and performs miscellaneous duties.
介Help. A person who helps. To be near, to accompany. to take care of. To intercede. To make friends with. to separate. to separate. to be firm. To protect tightly. Something that covers the outside to protect oneself. boundary. border.
大Big. Large. Large in number or quantity. Greatly. Valuable. Important. Excellent. Splendid. Very much. Much. (Power or force) strong. long time. To be high in rank or position.