Antonym: brother. Similar words: consistent, consistently, minister, sinister, register, administer, boisterous, resist. Meaning: ['sɪstə(r)] 
n. 1. a female person who has the same parents as another person 2. (Roman Catholic Church) a title given to a nun (and used as a form of address) 3. a female person who is a fellow member of a sorority or labor union or other group 4. (slang) sometimes used as a term of address for attractive young women.
n. 1. a female person who has the same parents as another person 2. (Roman Catholic Church) a title given to a nun (and used as a form of address) 3. a female person who is a fellow member of a sorority or labor union or other group 4. (slang) sometimes used as a term of address for attractive young women. 
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121. I didn't know you had a sister.
122. Gina's the exact opposite of her little sister.
123. John is a true sister under the skin.
124. Her deep hatred of her sister was obvious.
125. My sister hardly comes up to my shoulder.
126. Janet's sister was eight years her elder.
127. He likes to lord it over his little sister.
128. She's been eating off her younger sister for months.
129. She's quite different from her sister.
130. He left his son to his sister.
131. Chris takes great delight in teasing his sister.
132. My sister came out well in that photograph.
133. My sister needed an escort for a company dinner.
133. Sentencedict.com try its best to collect and build good sentences.
134. His sister was his ally against their grandparents.
135. My elder sister lives in Canada.
136. His sister screamed out that he was crazy.
137. She and her sister have never really got on.
138. His sister took to knitting in her spare time.
139. Claudia felt a deep pang of sorrow for her sister.
140. It always brings on an attack of broodiness when I go and see my sister and her children.
141. I always stock up the fridge before my sister comes to stay.
142. The duty to protect my sister is prior to all others.
143. Why don't you ask your sister if she would like to join us for supper?
144. Ray and sister Renee lived just 25 miles apart from each other.
145. 'Couldn't you have just said no?' 'Well, hardly, she's my wife's sister.'
146. His elder sister had been his guide, counsellor and friend.
147. You can depend on my sister to spoil things .
148. She's very thoughtful - the direct opposite of her sister.
149. While I struggled, my sister coasted through school with top grades.
150. My sister will go nuts when she finds out I've wrecked her car.
More similar words: consistent, consistently, minister, sinister, register, administer, boisterous, resist, subsist, insist, persist, assist, consist, assist in, consist of, consist in, assistant, assistance, resistance, listen, distend, listen to, listener, enlisted, oyster, poster, foster, glistening, mystery, cluster.