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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61. To a wise man one word is enough. 
62. One should eat to live, not live to eat.
63. A boaster and a liar are all one.
64. Fortune to one is mother, to another is stepmother.
65. One barking dog sets all the streets barking.
66. No one (or man) is born wise or learned.
67. Conversation makes one what he is.
68. One butcher does not fear many sheep.
69. Two heads are better than one.
70. A thousand probabilities do not make one truth.
71. One’s words reflect one’s thinking.
72. Love should not be all on one side.
73. One careless move loses the whole game.
74. Genius is one percent inspiration, ninety-nine percent perspiration.
75. One may think that dares not speak.
76. Give as good as one gets.
77. Many a one says well that thinks ill.
78. In the evening one may praise the day.
79. One must howl with the wolves.
80. No one is wise at all times.
81. Bite the hand that feeds one.
82. One man’s fault is another man’s lesson.
83. A wise man hears one word and understand two.
84. What is one man's cloud is another man's sunshine.
85. One father is more than a hundred schoolmasters. George Herbert
86. At need one sees who his friend is.
87. A man [one] is never too old to learn.
88. Many hands are better than one.
89. One beats the bush,[Sentencedict] and another catches the birds.
90. Between two stools one falls to the ground.