Synonym: 1, I, ace, ane, i, matchless, nonpareil, one and only, one, peerless, single, unitary, unity, unmatchable, unmatched, unrivaled, unrivalled. Similar words: done, on, once, tone, zone, on end, age, and. Meaning: [wʌn] 
n. 1. the smallest whole number or a numeral representing this number 2. a single person or thing. adj. 1. used of a single unit or thing; not two or more 2. having the indivisible character of a unit 3. of the same kind or quality 4. used informally as an intensifier 5. indefinite in time or position 6. being a single entity made by combining separate components 7. eminent beyond or above comparison.
n. 1. the smallest whole number or a numeral representing this number 2. a single person or thing. adj. 1. used of a single unit or thing; not two or more 2. having the indivisible character of a unit 3. of the same kind or quality 4. used informally as an intensifier 5. indefinite in time or position 6. being a single entity made by combining separate components 7. eminent beyond or above comparison. 
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121. One volunteer is worth ten pressed men. 
122. One good mother is worth a hundred schoolmasters. George Herbert
123. That which one least anticipates soonest comes to pass.
124. One cannot make bricks without straw.
125. All bread is not baked in one oven.
126. One never loses anything by politeness.
127. Friendship cannot stand always on one side.
128. No man (or one) is wise at all times.
129. One never loses by doing a good turn.
130. One wrong thought may cause a lifelong regret.
131. Don't keep all your eggs in one basketball.
132. One lie makes [calls for] many.
133. To make good use of life.one should have in youth the experience of advanced years,and in old age the vigor of youth.
134. All the wit in the world is not in one head.
135. A man has two ears and one mouth that he may hear much and speak little.
136. Patience is a flower that grows not in every one’s garden.
137. One wrong (or false) move can lose the whole game.
138. One ploughs[Sentence dictionary], another sow; who will reap no one knows.
139. One of the most striking and salutary thing in Ameican life is the widespread study of law.
140. One half of the world does not know how the other half lives.
141. Better a little fire to warm us, than a great one to burn us.
142. The house of every one is to him as his castle and fortress.
143. Sell the bear’s skin before one has caught the bear.
144. If one desires to succeed in anything, he must pay the price.
145. One man may steal a horse, while another may not look over the hedge.
146. One might as well be hanged for a sheep as a lamb.
147. One cannot do a foolish thing once in one's life, but one must hear of it a hundred times.
148. One man makes a chair and another man sits in it.
149. He who receives a benefit should never forget it; he who bestows one should never remember it.
150. No one can degrade us except ourselves; that if we are worthy, no influence can defeat us.