Synonym: bare, begin, disclose, establish, expose, initiate, launch, originate, reveal, show, start, uncover, unfold. Antonym: close, shut. Similar words: openly, opening, in the open, spend, opera, hope, cope, pencil. Meaning: ['əʊpən] 
n. 1. a clear or unobstructed space or expanse of land or water 2. where the air is unconfined 3. a tournament in which both professionals and amateurs may play 4. information that has become public. v. 1. cause to open or to become open 2. start to operate or function or cause to start operating or functioning 3. become open 4. begin or set in action, of meetings, speeches, recitals, etc. 5. spread out or open from a closed or folded state 6. make available 7. become available 8. have an opening or passage or outlet 9. make the opening move 10. afford access to 11. display the contents of a file or start an application as on a computer. adj. 1. affording unobstructed entrance and exit; not shut or closed 2. affording free passage or access 3. with no protection or shield 4. open to or in view of all 5. used of mouth or eyes 6. not having been filled 7. accessible to all 8. not defended or capable of being defended 9. (of textures) full of small openings or gaps 10. having no protecting cover or enclosure 11. (set theory) of an interval that contains neither of its endpoints 12. not brought to a conclusion; subject to further thought 13. not sealed or having been unsealed 14. without undue constriction as from e.g. tenseness or inhibition 15. ready or willing to receive favorably 16. open and observable; not secret or hidden 17. not requiring union membership 18. possibly accepting or permitting 19. affording free passage or view 20. openly straightforward and direct without reserve or secretiveness 21. ready for business.
n. 1. a clear or unobstructed space or expanse of land or water 2. where the air is unconfined 3. a tournament in which both professionals and amateurs may play 4. information that has become public. v. 1. cause to open or to become open 2. start to operate or function or cause to start operating or functioning 3. become open 4. begin or set in action, of meetings, speeches, recitals, etc. 5. spread out or open from a closed or folded state 6. make available 7. become available 8. have an opening or passage or outlet 9. make the opening move 10. afford access to 11. display the contents of a file or start an application as on a computer. adj. 1. affording unobstructed entrance and exit; not shut or closed 2. affording free passage or access 3. with no protection or shield 4. open to or in view of all 5. used of mouth or eyes 6. not having been filled 7. accessible to all 8. not defended or capable of being defended 9. (of textures) full of small openings or gaps 10. having no protecting cover or enclosure 11. (set theory) of an interval that contains neither of its endpoints 12. not brought to a conclusion; subject to further thought 13. not sealed or having been unsealed 14. without undue constriction as from e.g. tenseness or inhibition 15. ready or willing to receive favorably 16. open and observable; not secret or hidden 17. not requiring union membership 18. possibly accepting or permitting 19. affording free passage or view 20. openly straightforward and direct without reserve or secretiveness 21. ready for business. 
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121. He tried to push the door open, but he didn't have sufficient leverage.
122. Keep your eyes open and your feet moving forward. You'll find what you need.
123. Blow-off vision of the rain, so that you are left with a brilliant rainbow.Shuttle time in my fingers, without any regrets, open stemmed bloom ripples. Blunt rolling thick liquid eternal, but you and I, were dispersed in which period of Acacia leaves.
124. Can you hold the bag while I open the door?
125. A gentle breeze wafted the scent of roses in through the open window.
126. It was careless of me to leave the door open.
127. She has the window open, however cold it is outside.
128. The job is open to applicants with over two years' experience in retail.
129. Only children whose parents are existing savers may open an account.
130. Let's open the window to let in some fresh air.
131. It's getting stuffy in here - do you mind if I open the window?
132. He inserted the key in the lock but could not open the door.
133. They ceremoniously cut a piece of ribbon, declaring the exhibition open.
134. Guide dogs open up the lives of the blind or visually impaired.
135. I turned the handle and found the door was open.
136. Beauty is all around[sentencedict.com], if you just open your heart to see.
137. I was afraid to open the door lest he should follow me.
138. Whether he will continue to be successful in future is open to doubt.
139. This room smells a bit fusty - I think I'll just open a window.
140. This door seems to be stuck - can you help me push it open?
141. In an interview try to ask open questions that don't just need 'Yes' or 'No' as an answer.
142. The atmosphere is very stuffy in here can we open a window?
143. His tie was pulled loose and his collar hung open.
144. I wasn't intending to sell,(http://sentencedict.com) but I'm open to persuasion.
145. It's an open heart that's vulnerable to the deepest wound.
146. Anger gave me preternatural strength, and I managed to force the door open.
147. Paul tore open the packet as soon as it arrived.
148. The festival will open with a procession led by the mayor.
149. If this case is successful it could open the floodgates for thousands of similar claims.
150. I left the door open and the cat got out.