大幅【おおはば】
big, large, drastic, substantial, full-width cloth (approx. 72 cm wide for traditional Japanese clothing; approx. 140 cm wide for Western clothing)
大統領【だいとうりょう】
president (of a nation), big man, boss, buddy, mate
大学【だいがく】
university, college, former imperial university of Japan (established under the ritsuryō system for the training of government administrators), the Great Learning (one of the Four Books)
大会【たいかい】
mass meeting, convention, rally, conference, assembly, gathering, tournament, competition, contest, meet, grand event
最大【さいだい】
biggest, greatest, largest, maximum
大手【おおて】
major company, big company, front castle gate, force attacking the front of a castle
大蔵省【おおくらしょう】
Ministry of Finance (1869-2001), Ministry of the Treasury (under the ritsuryō system)
拡大【かくだい】
expansion, extension, magnification, enlargement, escalation, spread
大国【たいこく】
large country, major nation, great power, province of the highest rank (ritsuryō system)
大切【たいせつ】
important, significant, serious, crucial, precious, valuable, dear, cherished, beloved, careful
大使【たいし】
ambassador
大変【たいへん】
very, greatly, terribly, awfully, immense, enormous, great, serious, grave, dreadful, terrible, difficult, hard, challenging, major incident, disaster
大型【おおがた】
large, large-sized, large-scale, big
大使館【たいしかん】
embassy
大臣【だいじん】
cabinet minister
大人【おとな】
adult, grown-up
重大【じゅうだい】
serious, important, significant, grave, weighty
大半【たいはん】
majority, more than half, most (of), mostly, largely, mainly, predominately, nearly
大量【たいりょう】
large quantity, massive (quantity), mass (e.g. mass production, mass transit, mass destruction)
大戦【たいせん】
great war, great battle, world war