Synonym: bear, guard, keep, possess, preserve, protect, retain, save, support, sustain, uphold. Antonym: abandon. Similar words: contain, in the main, container, maintenance, uncertainty, remain, domain, mainly. Meaning: [meɪn'teɪn] 
v. 1. keep in a certain state, position, or activity; e.g., "keep clean" 2. keep in safety and protect from harm, decay, loss, or destruction 3. supply with necessities and support 4. state categorically 5. have and exercise 6. maintain for use and service 7. maintain by writing regular records 8. state or assert 9. support against an opponent 10. observe correctly or closely.
v. 1. keep in a certain state, position, or activity; e.g., "keep clean" 2. keep in safety and protect from harm, decay, loss, or destruction 3. supply with necessities and support 4. state categorically 5. have and exercise 6. maintain for use and service 7. maintain by writing regular records 8. state or assert 9. support against an opponent 10. observe correctly or closely. 
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121. It was difficult to maintain a secure foothold on the ice.
122. The army has been sent in to maintain order in the capital.
123. Despite these disadvantages, many older people maintain an active social life.
124. Critics maintain that these reforms will lead to a decline in educational standards.
125. It costs five thousand dollars a year to maintain this house.
126. The firm is determined to maintain dominance in the market.
127. The superpowers pledged to maintain symmetry in their arms shipments.
128. Their commitment was only to maintain the extent of forests,[http://sentencedict.com/maintain.html] not their biodiversity.
129. Scientists have estimated that a gene pool of at least 300 animals is necessary to maintain a healthy tiger population.
130. He has the power to use force to maintain public order.
131. He excused himself by saying he was "forced to rob to maintain my wife and cat".
132. The situation in the capital forced them to maintain military preparedness.
133. Can you afford to maintain my daughter in the manner to which she has been accustomed?
134. They maintain a database of hotels that cater for businesswomen.
135. She struggled to maintain the charade of not being afraid.
136. The psychiatrist must learn to maintain an unusual degree of objectivity.
137. She preferred to maintain a cool formality in her dealings with her manager.
138. He racked no rents to maintain the expenses of his establishment.
139. It allows the train to maintain a constant speed through the twists and turns of existing track.
140. You have to maintain a balance in your life or else you'll go crazy.
141. How can you maintain a family on $900 a month?
142. Most of us would maintain that physical attractiveness does not play a major part in how we react to the people we meet.
143. She stood some distance away from him to maintain a safety zone.
144. Human rights organizations maintain that the men have been wrongly convicted.
145. But what constabulary safeguards do those altruistic groups maintain?
146. Normally it's job is to maintain fluid balance.
147. By denying scientific principles, one may maintain any paradox. Galileo Galilei 
148. I planned to maintain a single-minded focus on my studies, to get through and excel-with blinders on.
149. Both need to maintain their capital base in monetary terms.
150. They are content to maintain their secrecy and carry on business as normal.
More similar words: contain, in the main, container, maintenance, uncertainty, remain, domain, mainly, remaining, retain, obtain, mainstream, curtain, captain, sustain, certain, ain't, certainly, for certain, retaining, uncertain, faint, certainly not, sustainable, painter, paintwork, complaint, plaintiff, constraint, entertainment.