'Belonging' definitions:

Definition of 'belonging'

noun

Happiness felt in a secure relationship; "with his classmates he felt a sense of belonging"

From: GCIDE

Belong \Be*long"\, v. i. [imp. & p. p. Belonged; p. pr. & vb. n. Belonging.] [OE. belongen (akin to D. belangen to concern, G. belangen to attain to, to concern); pref. be- + longen to desire. See Long, v. i.]
Note: [Usually construed with to.]
1. To be the property of; as, Jamaica belongs to Great Britain. [1913 Webster]
2. To be a part of, or connected with; to be appendant or related; to owe allegiance or service. [1913 Webster]
A desert place belonging to . . . Bethsaids. --Luke ix. 10. [1913 Webster]
The mighty men which belonged to David. --1 Kings i. 8. [1913 Webster]
3. To be the concern or proper business or function of; to appertain to. "Do not interpretations belong to God ?" --Gen. xl. 8. [1913 Webster]
4. To be suitable for; to be due to. [1913 Webster]
Strong meat belongeth to them that are of full age. --Heb. v. 14. [1913 Webster]
No blame belongs to thee. --Shak. [1913 Webster]
5. To be native to, or an inhabitant of; esp. to have a legal residence, settlement, or inhabitancy, whether by birth or operation of law, so as to be entitled to maintenance by the parish or town. [1913 Webster]
Bastards also are settled in the parishes to which the mothers belong. --Blackstone. [1913 Webster]

From: GCIDE

Belonging \Be*long"ing\, n. [Commonly in the pl.]
1. That which belongs to one; that which pertains to one; hence, goods or effects. "Thyself and thy belongings." --Shak. [1913 Webster]
2. That which is connected with a principal or greater thing; an appendage; an appurtenance. [1913 Webster]
3. Family; relations; household. [Colloq.] [1913 Webster]
Few persons of her ladyship's belongings stopped, before they did her bidding, to ask her reasons. --Thackeray. [1913 Webster]