verb

schnüren

tie

The verb schnüren has a few distinct meanings depending on the context:

To lace or tie up: This is the most common usage, referring to pulling cords or laces tight, for example when closing shoes (e.g., hiking boots or sneakers) or tightening a corset.
To bundle or tie together: It can mean to bind several objects together into a single package or bundle using a rope, string, or cord.
To restrict or constrict: It can describe a physical sensation of tightness, often used in phrases like "es schnürt mir die Kehle zu" (it constricts my throat), usually as a reaction to strong emotions like sadness or fear.
To put together a package (figurative): In business or travel, it refers to assembling a set of services or goods into a single offer, such as "ein Urlaubspaket schnüren" (to put together a holiday package).

Grammar: It is a weak verb. The conjugation follows the standard pattern: schnürt (third-person singular present), schnürte (simple past), and hat geschnürt (perfect tense).
Word origin: It is derived from the Old High German word snuor (cord or string), which is related to the English word "snare."