一体【いったい】
(what) the heck, (why) in the world, (who) on earth, one object, one body, unity, one form, one style, one Buddhist image (or carving, etc.), generally, in general
遺体【いたい】
(dead) body, corpse, remains
死体【したい】
dead body, corpse, cadaver, carcass
正体【しょうたい】
true character, true form, true colors (colours), identity, truth (of a mystery, phenomenon, etc.), origin, consciousness, one's senses
全体【ぜんたい】
whole, entirety, to begin with, in the first place, ... the heck (e.g. "what the heck?"), ... in the world (e.g. "why in the world?"), ... on earth (e.g. "who on earth?")
大体【だいたい】
generally, on the whole, mostly, almost, nearly, approximately, roughly, about, general, rough, outline, main points, gist, substance, essence, in the first place, first and foremost, from the start, to begin with
体験【たいけん】
(practical) experience, personal experience, hands-on experience, first-hand experience
体力【たいりょく】
stamina, endurance, physical strength, resilience, resistance to disease, strength of an organization (e.g. profitability, productivity, economic clout, stability, growth potential)
体重【たいじゅう】
(body) weight
体調【たいちょう】
physical condition, state of health, shape
肉体【にくたい】
the body, the flesh, the outer man, one's physique
具体的【ぐたいてき】
concrete, definite, specific, material, substantial
自体【じたい】
itself, one's own body, oneself, originally, naturally, by nature, from the start
団体【だんたい】
group, party, team, organization, organisation, association, group, body, society
機体【きたい】
fuselage, airframe
体内【たいない】
interior of the body
解体【かいたい】
demolition, taking down, dismantling, disassembly, taking apart, dissolution (of an organization, company, etc.), breaking up, dissection (of a body), dismemberment
身体【しんたい】
body, physical system, (the) person
体制【たいせい】
order, system, structure, set-up, organization, organisation
体育【たいいく】
physical education, PE, gym (class)