The American English hyphenation patterns loaded by TeX/LaTeX (those by Liang and Knuth) allow hyphenating ev-ery-where. The British ones (by Wujastyk and Toal), only allow every-where. Curiously enough, the online Oxford dictionary for American English says eve-ry-where. Also, if we instead of the traditional patterns for AmEn we use the “US English max” patterns by Kuiken, the only allowed hyphenation is every-where.
Let's look for a confirmation with a test:
\documentclass{article}
\newcommand\test[1]{%
\language\csname l@#1\endcsname
\parbox[t]{0pt}{\hspace{0pt}everywhere}%
}
\begin{document}
\begin{tabular}{lll}
American English & American English & British English \\
(Liang-Knuth) & (Kuiken) & (Wujastik and Toal) \\
\test{english} & \test{usenglishmax} & \test{british}
\end{tabular}
\end{document}

If you feel that ev-ery-where is ambiguous, you can add
\hyphenation{every-where}
to your preamble. If you do language shifting with babel, it's best to use its own method for defining hyphenation exceptions:
\babelhyphenation[english]{every-where}
(you need babel version 3.9). Changing the hyphenation patterns to use usenglishmax is possible with H. Oberdiek's package hyphsubst, typing
\usepackage[english=usenglishmax]{hyphsubst}
as soon as possible in the preamble.
However, TeX is usually quite frugal with hyphenation, provided the line length is generous. By loading microtype you can even decrease the hyphenation frequency.
\documentclass{article}
\usepackage{microtype}
\usepackage{kantlipsum}
\begin{document}
\microtypesetup{activate=false}
\kant[1]
\microtypesetup{activate=true}
\kant[1]
\end{document}

\hyphenation{every-where}in the preamble should do, if you don't use language switching in the document. If you do, please add a MWE. – egreg Jun 01 '14 at 11:13\-is a primitive command in TeX (LaTeX redefines it, but in a mostly equivalent form, when normal text is dealt with). – egreg Jun 01 '14 at 11:38microtype, hyphenation frequency will even decrease. – egreg Jun 01 '14 at 11:39microtypepackage is marvellous! It places everything at the perfect place. Maybe you can collect your comments in an answer, so that I can accept it. – Jeroen Jun 01 '14 at 12:24british, I get the result you want with SLx64's example without specifying the hyphenation explicitly ;). (British English uses different hyphenation rules from American English.) I tried this because splitting asev-erywherelooked very wrong to me. Since TeX generally hyphenates very nicely, it seemed plausible to think the rule might be variant-specific. – cfr Jun 01 '14 at 12:51\hyphenation{<hypthenated word>}before\begin{document}but that doesn't work. I can't find the context as to where EXACTLY to put the\hyphenationtag – BlkPengu Jun 25 '19 at 17:51