Synonym: action, energy, movement, inactivity. Similar words: productivity, sensitivity, activist, active, actively, attractive, active transport, levity. Meaning: [æk'tɪvətɪ] 
n. 1. any specific behavior 2. the state of being active 3. an organic process that takes place in the body 4. (chemistry) the capacity of a substance to take part in a chemical reaction 5. a process existing in or produced by nature (rather than by the intent of human beings) 6. the trait of being active; moving or acting rapidly and energetically.
n. 1. any specific behavior 2. the state of being active 3. an organic process that takes place in the body 4. (chemistry) the capacity of a substance to take part in a chemical reaction 5. a process existing in or produced by nature (rather than by the intent of human beings) 6. the trait of being active; moving or acting rapidly and energetically. 
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91. The show was about to begin and backstage there were signs of feverish activity .
92. Is the property or any part thereof used for commercial activity?
93. Here's an activity you can do with mixed ability classes.
94. If the weather is wet or cold choose an indoor activity.
95. The police never caught him in any criminal activity but he eventually fell foul of the tax authorities.
96. After a day of air and activity,[http://sentencedict.com/activity.html] you should be in the mood for a good meal.
97. Textbook writing can be an intellectually and financially rewarding activity.
98. The monkeys have electrodes implanted into the brain to measure their brain activity.
99. You become so deeply absorbed in an activity that you lose track of time.
100. of the terrorist activity.
101. After a sudden burst of activity, the team lapsed back into indolence.
102. Police watched the house all day, but there was no sign of activity.
103. She denies that her company has been involved in any actionable activity.
104. Terrorist activity in the area has frightened most tourists away.
105. A recent study showed that gardening is easily the most popular activity among the over 50s.
106. Radioactive tracers have been used to map the metabolic activity of the brain.
107. The construction site of a new school was a hive of activity.
108. The human brain is the centre of higher nervous activity.
109. Ministers are concerned by the low level of economic activity.
110. The latest increase in interest rates has damped down activity in the housing market.
111. Reading books does not rate highly among Britons as a leisure activity.
112. The activity had us tied up for a whole week.
113. Business is a competitive activity. It is very fierce and very unforgiving.
114. There was no evidence that he was concerned in any criminal activity.
115. The activity holidays on offer are really best suited to groups.
116. The teacher asked the students to choose a partner for the next activity.
117. She goes swimming every morning before breakfast. What you wear for this activity is usually called a swimming costume in BrE and a bathing suit in AmE.
118. In Britain, the general age of consent for sexual activity is 16.
119. On Saturday morning, the town hums with activity and life.
120. Watching sport was by far the most popular activity on Saturday afternoons.
More similar words: productivity, sensitivity, activist, active, actively, attractive, active transport, levity, gravity, tactic, action, objective, detective, fraction, reaction, practice, collective, distinctive, perspective, protective, productive, practical, effectively, attraction, practically, take action, in practice, respectively, transaction, practitioner.