Synonym: endorse, gesture, indicate, initial, mark, motion, seal, signal, wave. Similar words: sign on, resign, sign up, sign in, assign, signal, design, consign. Meaning: [saɪn] 
n. 1. a perceptible indication of something not immediately apparent (as a visible clue that something has happened) 2. a public display of a (usually written) message 3. any communication that encodes a message 4. structure displaying a board on which advertisements can be posted 5. (astrology) one of 12 equal areas into which the zodiac is divided 6. (medicine) any objective evidence of the presence of a disorder or disease 7. having an indicated pole (as the distinction between positive and negative electric charges) 8. an event that is experienced as indicating important things to come 9. a gesture that is part of a sign language 10. a fundamental linguistic unit linking a signifier to that which is signified 11. a character indicating a relation between quantities. v. 1. mark with one's signature; write one's name (on) 2. approve and express assent, responsibility, or obligation 3. be engaged by a written agreement 4. engage by written agreement 5. communicate silently and non-verbally by signals or signs 6. place signs, as along a road 7. communicate in sign language 8. make the sign of the cross over someone in order to call on God for protection; consecrate. adj. used of the language of the deaf.
n. 1. a perceptible indication of something not immediately apparent (as a visible clue that something has happened) 2. a public display of a (usually written) message 3. any communication that encodes a message 4. structure displaying a board on which advertisements can be posted 5. (astrology) one of 12 equal areas into which the zodiac is divided 6. (medicine) any objective evidence of the presence of a disorder or disease 7. having an indicated pole (as the distinction between positive and negative electric charges) 8. an event that is experienced as indicating important things to come 9. a gesture that is part of a sign language 10. a fundamental linguistic unit linking a signifier to that which is signified 11. a character indicating a relation between quantities. v. 1. mark with one's signature; write one's name (on) 2. approve and express assent, responsibility, or obligation 3. be engaged by a written agreement 4. engage by written agreement 5. communicate silently and non-verbally by signals or signs 6. place signs, as along a road 7. communicate in sign language 8. make the sign of the cross over someone in order to call on God for protection; consecrate. adj. used of the language of the deaf. 
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121 I had to sign on the dole on Monday.
122 The only means of communication was sign language.
123 It's a sign of the approach of middle age.
124 Soldiers sign out when they leave the barracks.
125 An illuminated sign flashed on and off.
126 Tolerance is a sign of breeding.
127 Please sign your name by the cross.Sentencedict.com
128 She handlettered a "no sale" sign.
129 Long hair was traditionally regarded as a sign of femininity.
130 It might be a sign, much further down the road , of a change in policy.
131 A common sign of dyslexia is that the sequencing of letters when spelling words may be incorrect.
132 Once you sign on the dotted line you are committed to that property.
133 They showed little sign of equalising the Portsmouth striker's glorious 55th-minute shot.
134 Kim received the news without showing any visible sign of emotion .
135 The look on her face was a definite sign that sth was wrong.
136 The priest made the sign of the cross over the dead body.
137 She passed close by me without a sign of recognition.
138 Admitting you've made a mistake is a sign of strength(sentencedict.com), not weakness.
139 The violence of the crowd can only be explained as a sign of some collective mania.
140 You ought to make a few discreet enquiries before you sign anything.
141 Guests are returning in increasing numbers— a sure sign that we are on the right track.
142 A strong square jaw is a sign of firm character.
143 There is every sign that/All the signs are that the worst is over.
144 It would be a sacrilege to put a neon sign on that beautiful old building.
145 The Party has ruthlessly crushed any sign of organised opposition.
146 Using a false accent over the phone is a sign of inferiority.
147 Mark was lying unconscious but with no outward sign of injury.
148 His door was closed. That was a bad sign .
149 Being a good pool player is usually a sign of a misspent youth.
150 We approach the end of the year with the economy slowing and little sign of cheer.
More similar words: sign on, resign, sign up, sign in, assign, signal, design, consign, designs, consignor, designed, design for, designer, signature, designing, designated, significant, assignment, resignation, significance, designation, consignment, significantly, sigh, insight, in sight, ignore, reign, feign, foresight.