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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91. But what exactly is a trade association?
92. Setting - National association for adults with cystic fibrosis.
93. This would violate their constitutional right of free association.
94. By its close association with women.
95. Preston had a long association with railway stations.
96. Franklin had a long association with Republican politics.
97. It marked the beginning of Richard's association with Aquitaine.
98. These I also memorize through association with my travels.
99. Conversely, there was no significant association with portal hypertension.
100. The women's association has amalgamated with the men's.
101. Forming a close association with them was ruled out.
102. The results suggested no strong association.
103. She was a total mystery to him in spite of their long and successful association.
104. The strong association between colorectal dysplasia and cancer in ulcerative colitis was described in 1967.
105. The prospective study, however(sentencedict.com), indicated a clear cut association between pseudomelanosis coli and colorectal tumours in man.
106. There are also a number of articulate carers, whose visibility is enhanced by the work of the Carers National Association.
107. Also, in association with the Partially Sighted Society, special adaptations were made.
108. Even the most innocent Jell-O fact sends me spiraling into free association darker than even the blackest black cherry.
109. It was agreed that the Village Association should donate ￡100 towards the expenses. 4.
110. Included in their package of proposals are a national scrutineer and adviser on student association accounts and activities.
111. The Humane Slaughter Association is right to point out the arguments in favour of religious freedom.
112. That began a close association between the two, with the artist applying himself assiduously to the theories of his friend. Sentencedict.com
113. Whereas relationships express the association between two entities, relations are a tabular representation of an entity, complete with attributes.
114. The blue saddlecloth evidently had a strong association with pain; which indicated the reason for her earlier unsuccessful training.
115. More than half the teams in the National Basketball Association are building or planning new arenas.
116. Crosse's close association with Ralegh ruined his prospects at the court of James I and he retired.
117. Evidence is now accumulating to suggest that this is only partially true, because there is considerable association with other allergic symptoms.
118. In association with endocrine cell hyperplasia, gastric carcinoid tumours have been observed in 1-7% of pernicious anaemia patients screened by gastroscopy.
119. The new health care proposals have been criticized by the British Medical Association.
120. The Association was open to anyone resident in the island who was prepared to pay the annual subscription of one guinea.
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.