#!/bin/sh -eux

# Fetch the first argument.
word=$1; shift

# Construct the URL to visit.
url="https://www.oxfordlearnersdictionaries.com/definition/english/$word"

# Dump the Web page as a plain text.
w3m -dump $url |
    # Extract the (possible) word definition part.
    # NOTE: Assuming that the word definition is terminated by a section header.
    sed -n "/^$word/,/^See/p"