One of two or more individuals having at least one parent in common
Relationships (Outline)
Types
Genetic or adoptive
Kinship
Family
Parent
father
mother
Grandparent
Sibling
Cousin
By marriage
Spouse
Husband
Wife
Open marriage
Polygamy
Polyandry
Polygyny
Group marriage
Mixed-orientation
Partner(s)
Significant other
Boyfriend
Girlfriend
Cohabitation
Same-sex
Life partner
Friendship (romantic / cross-sex / zone)
Intimate and sexual
Casual
Monogamy
Non-monogamy
Mutual monogamy
Polyamory
Polyfidelity
Cicisbeo
Concubinage
Courtesan
Mistress
Activities
Bonding
Courtship
Dating
Engagement
Bachelor's Day
Mating
Meet market
Romance
Singles event
Wedding
Endings
Breakup
Legal/marital separation
Annulment
Divorce
Widowhood
Emotions and feelings
Affinity
Attachment
Intimacy
Jealousy
Limerence
Love
Platonic
Unconditional
Passion
Sexuality
Practices
Bride price
dower
dowry
service
Hypergamy
Infidelity
Sexual activity
Transgression
Repression
Abuse
Child
Dating
Domestic
Elderly
Narcissistic parent
Power and control
Stalking
v
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"Siblings" redirects here. For the television series, see Siblings (TV series). For other uses, see Siblings (disambiguation).
A sibling is a relative that shares at least one parent with the other person. A male sibling is a brother, and a female sibling is a sister. Somebody with no siblings is an only child.
A sister (female sibling) carrying her brother (male sibling).
While some circumstances can cause siblings to be raised separately (such as foster care), most societies have siblings grow up together. This causes the development of strong emotional bonds, with siblinghood considered a unique type of relationship. The emotional bond between siblings is often complicated and is influenced by factors such as parental treatment, birth order, personality, and personal experiences outside the family.[1]
Medically, a full-sibling is a first-degree relative and a half-sibling is a second-degree relative as they are related by 50% and 25%, respectively.[2][3]
^Mersky Leder, Jane (Jan–Feb 1993). "Adult Sibling Rivalry". Psychology Today. Archived from the original on December 11, 2012. Retrieved November 28, 2006.
^"First, Second and Third Degree Relative". www.bcbst.com. BlueCross BlueShield of Tennessee, Inc.
^"CONSANGUINITY / AFFINITY CHART" (PDF). University of Alabama at Birmingham.
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