- 絶対【ぜったい】 - absolutely, definitely, unconditionally, absolute, unconditional, unmistakable, absoluteness 
- 反対【はんたい】 - opposition, resistance, antagonism, hostility, objection, dissent, reverse, opposite, inverse, contrary 
- 対決【たいけつ】 - confrontation, showdown 
- 対応【たいおう】 - correspondence (to), equivalence, suitability, coordination, matching, being appropriate (for), dealing with, coping with, handling, response, reception, reaction, compatibility (with technology, software, etc.), capability, support (for) 
- に対して【にたいして】 - towards, against, regarding, in contrast with 
- に対する【にたいする】 - regarding, in, to, towards, with regards to 
- 対処【たいしょ】 - dealing with, coping with 
- 対象【たいしょう】 - target, object (of worship, study, etc.), subject (of taxation, etc.) 
- 対策【たいさく】 - measure, step, countermeasure, counterplan, countermove, strategy, preparation (e.g. for a test) 
- 対抗【たいこう】 - opposition, rivalry, competition, antagonism 
- 絶対に【ぜったいに】 - absolutely, definitely, unconditionally 
- 対立【たいりつ】 - confrontation, opposition, antagonism 
- 対戦【たいせん】 - fighting (against), taking on (an opponent), facing, confronting, competing (with), battle, fight, contest, match 
- 初対面【しょたいめん】 - first meeting, first interview with 
- 反対側【はんたいがわ】 - opposite side, opposition 
- に対し【にたいし】 - towards, against, regarding, in contrast with 
- 対話【たいわ】 - dialogue, conversation, talk, discussion, communication 
- 対日【たいにち】 - toward Japan, with Japan 
- 対等【たいとう】 - equality (esp. of status), equal footing, equal terms 
- 対談【たいだん】 - talk, dialogue, conversation