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nation duration aspiration vibration hydration oration ablation aeration dilation elation operation relation situation creation formation location separation station variation illustration isolation rotation salvation violation frustration saturation vacation affiliation affirmation calibration cessation federation filtration narration oscillation probation starvation toleration vocation aberration adoration appellation cancellation citation donation iteration sedation summation adulation corroboration deflation legation education application consideration generation association cooperation corporation foundation preparation radiation activation adaptation admiration correlation declaration deviation elevation exploration inflation inspiration liberation migration obligation restoration revelation sensation taxation acceleration agitation allocation alteration assimilation celebration collaboration decoration delegation estimation fixation installation irrigation irritation navigation 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stimulation alienation appropriation arbitration computation confirmation consolidation consultation contemplation continuation deformation degradation destination dissertation domination excitation hesitation imitation implication medication meditation oxidation penetration propagation quotation recreation registration reservation segregation simulation speculation termination accusation aggregation annexation assassination attenuation authorization coagulation complication dedication deliberation deprivation dislocation dissipation elaboration emigration exaggeration importation infiltration ionization irradiation litigation ordination polarization realisation reformation replication retaliation retardation abbreviation adjudication alternation bifurcation conformation connotation consecration consternation constipation consummation coronation delineation demarcation deportation deputation divination elongation emulation exaltation exhortation exportation fertilization fluctuation 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