Antonym: enemy, opponent, rival. Similar words: associate, associated, appreciation, renunciation, variation, radiation, negotiation, social. Meaning: [ə‚səʊsɪ'eɪʃn] 
n. 1. a formal organization of people or groups of people 2. the act of consorting with or joining with others 3. the state of being connected together as in memory or imagination 4. a social or business relationship 5. the process of bringing ideas or events together in memory or imagination 6. a relation resulting from interaction or dependence 7. (chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding 8. (ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species.
n. 1. a formal organization of people or groups of people 2. the act of consorting with or joining with others 3. the state of being connected together as in memory or imagination 4. a social or business relationship 5. the process of bringing ideas or events together in memory or imagination 6. a relation resulting from interaction or dependence 7. (chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding 8. (ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species. 
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121. In such circumstances, the presence of observer bias would increase the magnitude of the association between oesophagitis and hiatal hernia.
122. A love affair By the 1960s, when my own association with the hotel began, the Algonquin was all legend.
123. The Davis's long association continues, for they are still the owners.
124. The Association has recently purchased a large, detached house in a residential area of Melton Mowbray, Leicestershire.
125. A new report by the Baby Bells' trade association denies that.
126. The syndrome has been described in association with menstrual irregularities, pregnancy, and the use of oral contraceptives.
127. The village ceased to be a voluntary, personal association and became an administrative division existing for the convenience of the state.
128. Gabriel, who split from the supergroup in 1975, claims his career has suffered because of his association with the band.
129. The expected association between antral tumours and intestinal metaplasia was also seen.
130. The national association estimates that 6 million workers moved from temporary to permanent positions in 1996.
131. The National Rifle Association and other advocates of firearms rights are expected to vigorously oppose these proposals.
132. The only significant association was an increased risk of leukaemia and non-Hodgkin's lymphoma associated with first pregnancy.
133. The close association with the university teaching programs which prepare future teachers of exceptional children. 2.
134. Studies show a strong association between consistent dividend growth and long-term stock performance.
135. However(sentencedict.com), a much stronger negative association was found between neurotic symptoms and the perceived adequacy of social relationships.
136. Several reports from the older literature indicate that tetany may occur in association with hypokalemia, but the mechanism is poorly understood.
137. The sexes form different kinds of association for breeding in different species; some are monogamous, others polygynous, others polyandrous.
138. Three cases of severe acute hepatitis have been reported in association with piroxicam.
139. There is little doubt that the clownfish is very dependent on the association with its anemone.
140. He has, of course, come into recent prominence through a long association with the late Robert Maxwell.
141. The Association of Carers is campaigning vigorously on their behalf for more professional and financial support.
142. The National Rifle Association says taggants in gunpowder might act like a match struck near gasoline.
142. Sentencedict.com is a online sentence dictionary, on which you can find good sentences for a large number of words.
143. Freud later developed the technique of free association, a triumph which is often neglected in the discussion of his controversial theories.
144. Life does not proceed by the association and addition of elements, but by dissociation and division. Henri Bergson 
145. The Association of Charity Officers may be able to give advice about grants or statutory benefits.
146. Maternity wards were notably slow to improve, largely due to their popularly believed, if apparently unfounded, association with prostitution.
147. The association between echographic measurement and visual scales is a simple method of evaluating the relationship between the stomach and appetite.
148. Then he filed a lawsuit against Stores Protective Association and Robinsons-May, where the shoplifter was apprehended by security guards.
149. The Palace has launched a friends association with the aim of raising funds for its ongoing restoration programme.
150. There is evidence of an association between headaches and computer use.
More similar words: associate, associated, appreciation, renunciation, variation, radiation, negotiation, social, socially, social services, assumption, nation, operation, donation, national, relation, equation, location, zonation, education, formation, inflation, sensation, allegation, migration, violation, isolation, summation, situation, population.