federal [fédərəl]
agency [éɪdʒənsi]
uncover [ʌ̀nkʌ́vər]
lifespan [láɪfspæ̀n]
outdated [àᴜtdéɪtɪd]
usable [júːzəbl]
remarkable [rimɑ́ːrkəbl]
conclusive [kənklúːsɪv]
proof [prúːf]
speculate [spékjəlèɪt]
intentionally [ɪnténʃənəli]
shorten [ʃɔ́ːrtn]
boost [búːst]
obsolescence [ɑ̀bsəlésns]