Tvirtinimas

Tvirtinimas is a Lithuanian term that denotes the act or process of making something firm, securing it in place, or confirming its validity. The word derives from the verb tvirtinti, meaning to fortify, fix, secure, or affirm. In everyday language it can refer to physical fastening as well as to formal approval or validation.

In the construction, engineering, and manufacturing contexts, tvirtinimas describes fastening components together or anchoring them to a structure. This includes the use of fasteners such as bolts, screws, anchors, rivets, and related hardware, as well as the techniques and procedures that ensure stability, load transfer, and safety. Tvirtinimo darbai are essential for assembling machines, buildings, furniture, and various devices, and they are accompanied by considerations of mechanical strength, tolerance, and durability.

In administrative, legal, and organizational contexts, tvirtinimas refers to the act of confirming, endorsing, or authorizing a document, decision, or plan. It can involve sign-off by an authorized person or body and serves to establish legitimacy, agreement, or official recognition. The term is closely related to related concepts such as verification and approval, though in practical use both tvirtinimas and patvirtinimas may appear in similar contexts depending on the jurisdiction and field.

Beyond these, tvirtinimas can also be used more generally to denote making something firm or stable in a figurative sense, such as reinforcing an argument or stabilizing a position.