独立【どくりつ】
independence, self-reliance, supporting oneself, being on one's own, independence (e.g. of a nation), freedom, separation, isolation
独自【どくじ】
original, unique, distinctive, characteristic, peculiar, independent, one's own, personal
単独【たんどく】
sole, single, solo, independence, singleness, singularity
独特【どくとく】
peculiarity, uniqueness, characteristic, understood only by oneself
独占【どくせん】
monopoly, monopolization, exclusivity, hogging, keeping to oneself
独裁【どくさい】
dictatorship, despotism, autocracy, running (a company, etc.) despotically
独身【どくしん】
bachelorhood, single, unmarried, celibate
孤独【こどく】
solitude, loneliness, isolation
独断【どくだん】
one's own judgement (judgment), decision made without consulting others, arbitrary decision, dogmatism
独創【どくそう】
originality
独学【どくがく】
self-education, self-instruction, self-study
独り占め【ひとりじめ】
hogging, having all to oneself, monopolising, monopolizing
独演【どくえん】
solo, solo performance
独り言【ひとりごと】
soliloquy, monologue, speaking to oneself
独奏【どくそう】
(instrumental) solo, recital
独唱【どくしょう】
vocal solo
独房【どくぼう】
single cell, isolation cell, solitary cell, solitary confinement cell