Lexical Definition

‎זָהַר‎ zâhar (zaw-har') to shine H:V
a primitive root

admonish, shine, teach, (give) warn(-ing).

1) to admonish, warn, teach, shine, send out light, be light, be shining
1a) (Niphal) to be taught, be admonished
1b) (Hiphil)
1b1) to teach, warn
1b2) to shine, send out light (fig.)

Usage: 1 form in 1 verse
Form Translated As     In Verse(s)
יַזְהִ֖רוּ they will shine Dan.12.3

Brown-Driver-Briggs

I. [‎זָהַר‎] verb be light, shining (Arabic shine, adjective bright (compare LagBN 120); Aramaic ‎זְהַר‎, ; Late Hebrew in derivatives; see also below II. ‎זהר‎) —

Hiph`il intrans. (late) send out light, shine, figurative of everlasting glory of teachers of righteousness: ‎וְהַמַּשְׂכִּלִים יַוְהִרוּ כְּזֹהַר הָרָקִיעַ‎ Dan 12:3 and they that make wise shall shine like the shining of the firmament (|| ‎וּמַצְדִּיקֵי הָרַבִּים כַּכּוֺכָבִים לְעוֺלָם וָעֶד‎).

II. [‎זָהַר‎] verb only Hiph`il, Niph`al (Late Hebrew Hiph`il, admonish, compare Aramaic ‎זְהַר‎ (Aph`el, Pa`el etc.), (Arabic VIII. take care of, be mindful of is perhaps Aramaic loan-word, so Tel Amarna compare Lane). — Most identify with I. ‎זהר‎ = give light, enlighten, instruct, admonish; this possible, but not certain, meaning shine is late in Hebrew; usual sense as given below is not enlighten, illumine mentally, but warn; see also construction with two accusatives Exod 18:20); —

Hiph`il Perfect ‎וְהִזְהִיר‎ consecutive Ezek 33:3 suffix ‎וְהִזְהִירהֹ‎ 2Kgs 6:10 2 masculine singular ‎הִזְהַרְתָּ‎ Ezek 3:19; Ezek 33:9, ‎וְהִזְהַרְתָּ֫‎ Ezek 3:17; Ezek 33:7, ‎וְהִזְהַרְתָּ֫ה‎ Exod 18:20, suffix ‎הִזְהַרְתּוֺ‎ Ezek 3:18; Ezek 3:20; Ezek 3:21, ‎וְהִזְהַרְתָּ‎ consecutive Ezek 3:17; Ezek 33:7 ‎וְהִזְהַרְתֶּם‎ consecutive 2Chr 19:10 Infinitive construct ‎לְהַזְהִיר‎ Ezek 3:18; Ezek 33:8instruct, teach, warn: Exod 18:20 (E) teach them ordinances (2 accusative); 2Kgs 6:10 the place which (‎אֲשֶׁר‎) the man of God told him of (‎אָמַרלֿוֺ‎) and warned him (suffix) of; elsewhere only Ezra, Chronicles; warn, give a warning to, always followed by accusative of person only: Ezek 3:18; Ezek 3:19; Ezek 3:20; Ezek 33:3 give them (accusative) a warning from me (‎מִפֶּנִּי‎, ‎׳‎‎י‎ speaks) Ezek 3:17; Ezek 33:7 warn the wicked (‎רָשָׁע‎) from (away from, ‎מִן‎) his way Ezek 3:18; Ezek 33:8; Ezek 33:9 warn the righteous (‎צַדִּיק‎) Ezek 3:21 followed by Infinitive in order that the righteous sin not, compare 2Chr 19:10 followed by accusative of person + final clause with ‎וְ‎. Niph`al Perfect 3 masculine singular ‎נִזְהָ֔ר‎ Ezek 3:21; Ezek 33:4; Ezek 33:5; Ezek 33:6 also ‎נִזְהָ֖ר‎ vEzek 33:5 (read perhaps ‎הִזְהִיר‎, so We Sm Co); Imperative ‎הִזָּהֵר‎ Eccl 12:12 Infinitive construct ‎לְהִזָּהֵר‎ Eccl 4:13 Participle ‎נִזְהָר‎ Ps 19:12*be instructed, admonished, warned (passive of Hiph`il): — ‎גַּםעַֿבְדְּךָ נִזְהָ֣ר בָּהֶם‎ Ps 19:12* yea thy servant, he is instructed (or warned) by them (i.e. lets himself be instructed or warned by the ‎׳‎‎מִשְׁפְּטֵי י‎ vPs 19:10*); in Ezekiel distinctly take warning, absolute Ezek 3:21 (compare Hiph`il) Ezek 33:4; Ezek 33:5a; so Eccl 12:2 and, more generally, ‎אֲשֶׁר לֹא יָדַע לְהִזָּהֵר‎ Eccl 4:13 who knoweth not how to take admonition; be warned, receive warning Ezek 33:6 (of people, with ‎לֹא‎, i.e. if no warning be given them), also ᵑ0 vEzek 33:5b, but read perhaps Hiph`il (see above) but he (i.e. the watchman) gave warning, he hath delivered his (own) soul.

Brown-Driver-Briggs References

Book Refs
Exodus 18:20
2 Kings 6:10
2 Chronicles 19:10
Psalms 19:10* · 19:12*
Ecclesiastes 4:13 · 12:2 · 12:12
Ezekiel 3:17 · 3:18 · 3:19 · 3:20 · 3:21 · 33:3 · 33:4 · 33:5 · 33:6 · 33:7 · 33:8 · 33:9
Daniel 12:3